CWE-191 · Integer Underflow

640 CVEs classified under CWE-191 (Integer Underflow). Browse by severity and year.

Top CVEs for CWE-191
CVESeverityScorePublishedSummary
CVE-2026-101980Critical9.82026-10-14An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker t…
CVE-2026-85806Critical9.82026-10-13Integer underflow (wrap or wraparound) in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.
CVE-2026-83869Critical9.82026-10-13Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.
CVE-2026-83578Critical9.82026-10-13Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.
CVE-2026-100222Critical9.82026-10-13Heap-based buffer overflow in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.
CVE-2026-84411Critical9.82026-10-02The web management service in affected RouterOS versions contains an integer underflow in its HTTP request body handling that is reachable before authenticatio…
CVE-2026-91103Critical9.82026-09-16HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentia…
CVE-2026-69824Critical9.82026-09-08Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an unauthorized attacker to execute code over a network.
CVE-2026-69276Critical9.82026-09-08Integer underflow (wrap or wraparound) in Microsoft UxTheme Library (uxtheme.dll) allows an unauthorized attacker to execute code over a network.
CVE-2026-51540Critical9.82026-07-13OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connect…
CVE-2026-53176Critical9.82026-06-25In the Linux kernel, the following vulnerability has been resolved: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN In drivers/infiniband/ulp/isert…
CVE-2026-37534Critical9.82026-05-01Integer underflow vulnerability in Open-SAE-J1939 thru commit b6caf884df46435e539b1ecbf92b6c29b345bdfe (2025-11-30) in SAE_J1939_Read_Transport_Protocol_Data_T…
CVE-2025-52471Critical9.82025-06-24ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. An integer underflow vulnerability has been identified in the ESP-NOW protocol impleme…
CVE-2025-30356Critical9.82025-04-01CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between…
CVE-2025-29913Critical9.82025-03-17CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between…
CVE-2025-29912Critical9.82025-03-17CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between…
CVE-2025-29909Critical9.82025-03-17CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between…
CVE-2022-49280Critical9.82025-02-26In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent underflow in nfssvc_decode_writeargs() Smatch complains: fs/nfsd/nfsxdr.c…
CVE-2024-57843Critical9.82025-01-11In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix overflow inside virtnet_rq_alloc When the frag just got a page, then may…
CVE-2024-47606Critical9.82024-12-12GStreamer is a library for constructing graphs of media-handling components. An integer underflow has been detected in the function qtdemux_parse_theora_extens…
All CVEs classified under CWE-191 — newest first (page 1 of 7)
CVESeverityScorePublishedSummary
CVE-2026-73252High7.52026-10-14Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS stack selected by MG_TLS_BUILTIN in src/tls_builtin.c accepts a TLS 1.3…
CVE-2026-86566Medium6.52026-10-14A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the copy length in vhost enqueue, causing a denial of service in a shared vh…
CVE-2026-1064642026-10-14`_nx_secure_x509_parse_signature_data` computes the certificate signature's length as `tlv_length - 1` without first checking that `tlv_length` is non-zero. A…
CVE-2026-75083Medium5.92026-10-14The receive path of the NXP KW41Z IEEE 802.15.4 driver, kw41z_rx() in drivers/ieee802154/ieee802154_kw41z.c, computed the payload size as pkt_len = len - KW41Z…
CVE-2026-101980Critical9.82026-10-14An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker t…
CVE-2026-101968Medium5.42026-10-14An Integer Underflow (Wrap or Wraparound) vulnerability in the rpd process of Juniper Networks Junos OS on EX Series and MX Series, and Junos OS Evolved on ACX…
CVE-2026-101938Medium6.52026-10-14An Integer Underflow (Wrap or Wraparound) vulnerability in the srxpfe of Juniper Networks Junos OS and Junos OS Evolved on the SRX Series allows an adjacent un…
CVE-2026-110714Medium6.52026-10-14libsmb2 through 6.2 contains an integer underflow vulnerability in decode_acl that allows malicious SMB servers to trigger heap out-of-bounds reads via crafted…
CVE-2026-50216Medium5.32026-10-14An integer underflow exists in the DNS proxy component of the macOS NetworkExtension system extension shipped with Akamai Guardicore Platform Agent (GPA) for m…
CVE-2026-889642026-10-13An integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated servers to cause a denial of service or mem…
CVE-2026-97746High8.82026-10-13Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97739High8.82026-10-13Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97004High8.82026-10-13Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-96925Medium5.52026-10-13Integer underflow (wrap or wraparound) in Windows NTFS allows an authorized attacker to disclose information locally.
CVE-2026-96844High8.02026-10-13Integer underflow (wrap or wraparound) in Microsoft Bluetooth Driver allows an authorized attacker to elevate privileges over an adjacent network.
CVE-2026-88195Medium6.52026-10-13Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-88143Medium6.72026-10-13Heap-based buffer overflow in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
CVE-2026-85806Critical9.82026-10-13Integer underflow (wrap or wraparound) in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.
CVE-2026-85339High8.82026-10-13Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
CVE-2026-83869Critical9.82026-10-13Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.
CVE-2026-83855High7.52026-10-13Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unauthorized attacker to deny service over a network.
CVE-2026-83838High8.02026-10-13Integer underflow (wrap or wraparound) in Windows Bluetooth A2DP driver allows an authorized attacker to elevate privileges over an adjacent network.
CVE-2026-83836High7.82026-10-13Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code locally.
CVE-2026-83676High7.02026-10-13Integer underflow (wrap or wraparound) in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-83578Critical9.82026-10-13Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.
CVE-2026-70064High7.82026-10-13Integer underflow (wrap or wraparound) in Windows Kerberos allows an authorized attacker to elevate privileges locally.
CVE-2026-102192High7.52026-10-13Integer underflow (wrap or wraparound) in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
CVE-2026-100222Critical9.82026-10-13Heap-based buffer overflow in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.
CVE-2026-88833Medium6.52026-10-13A flaw was found in BusyBox's udhcpc DHCP client. When processing raw DHCP packets, the client replaces the validated packet length with an attacker-controlled…
CVE-2026-65200Low3.52026-10-13The openUBMC device-management process parses PLDM-over-MCTP and NCSI-over-MCTP responses from on-bus devices, and three response parsers in the shared transpo…
CVE-2026-102073High8.22026-10-13A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All…
CVE-2026-58249High7.52026-10-13SAP NetWeaver and SAP Web Dispatcher do not properly validate certain fields in specially crafted requests handled by an internal protocol component. An unauth…
CVE-2026-58242Low3.52026-10-13SAP Cloud Connector contains an improper authorization check, which could be exploited by a low-privileged attacker through specially crafted requests. Exploit…
CVE-2026-53922Medium6.52026-10-12odhcpd is the DHCPv6, DHCPv4, and router-advertisement server used by OpenWrt. In commit cfddd56 and earlier, an unauthenticated host on the same link can firs…
CVE-2026-109246Medium6.52026-10-12FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stor…
CVE-2026-1077942026-10-10ExtUtils::Typemaps::STL::List versions before 1.07 for Perl allocate a 32 GiB array on an empty list. The OUTPUT typemaps call av_extend( av, len-1 ). On an e…
CVE-2013-100762026-10-10ExtUtils::Typemaps::STL::Vector versions before 1.05 for Perl allocate a 32 GiB array on an empty list. The OUTPUT typemaps call av_extend( av, len-1 ). On an…
CVE-2026-1036362026-10-10Out-of-bounds read in the VarOpt union deserialization of Apache DataSketches C++ (repo: datasketches-cpp). var_opt_union::deserialize() read the 32-byte prea…
CVE-2026-75352High7.52026-10-09OpENer v2.3/commit 76b95cf, contains an integer underflow in the server-side EtherNet/IP ForwardOpen connection-path parser. This allows a remote attacker to c…
CVE-2026-1078362026-10-09RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. In 2026.07 and earlier, the nanoCoA…
CVE-2026-106437Medium6.22026-10-08The BSON buffer-reservation API in the MongoDB C Driver can record a length smaller than the five-byte BSON minimum. Later append or comparison operations can…
CVE-2026-106429Medium6.52026-10-08An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This c…
CVE-2026-107635Medium5.52026-10-08Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via c…
CVE-2026-107614Medium6.12026-10-08An integer underflow in WinCursorShapeUtils::trimTransparent() in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to crash…
CVE-2026-19186High8.12026-10-07ieee802154_decipher_data_frame() in subsys/net/l2/ieee802154/ieee802154_frame.c computed payload_len = net_pkt_get_len(pkt) - ll_hdr_len - authtag_len without…
CVE-2026-83742High8.82026-10-07Unsigned integer underflow in wstrncat() in src/port.c in wolfSSL wolfSSH from v1.4.11 through v1.5.0 on non-Windows platforms allows an authenticated remote a…
CVE-2026-102168Medium6.52026-10-06On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a Captive-Portal-enabled SSID can crash the…
CVE-2026-84411Critical9.82026-10-02The web management service in affected RouterOS versions contains an integer underflow in its HTTP request body handling that is reachable before authenticatio…
CVE-2026-865372026-10-02Uncaught exception, Loop with unreachable exit condition ('infinite loop'), Integer underflow (wrap or wraparound) vulnerability in Apache Thrift D language bi…
CVE-2026-824592026-10-02Integer underflow (wrap or wraparound), Out-of-bounds write vulnerability in Apache Thrift C++ 32 bit THeaderTransport. This issue affects Apache Thrift: be…
CVE-2026-47585High7.82026-09-30NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel module where an attacker could cause an integer underflow. A successful exploit of…
CVE-2026-47540High7.82026-09-30NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer where an attacker could cause an integer underflow. A success…
CVE-2026-86133High7.52026-09-30An integer underflow vulnerability in the WatchGuard Fireware OS IKE daemon (iked) allows a remote attacker who has completed the initial IKEv2 handshake to cr…
CVE-2026-86132High7.52026-09-30An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked) allows a remote, unauthenticated attacker to crash the process by sending…
CVE-2026-1027142026-09-29`_nx_icmpv6_validate_options()` scans the option area with `while (length > 2)` (`common/src/nx_icmpv6_validate_options.c:79`). An area whose size leaves a one…
CVE-2026-18747Medium6.82026-09-29The MCUmgr SMP-over-console transport decodes a base64 frame, reads a 16-bit packet length from it, verifies a CRC and then unconditionally strips the trailing…
CVE-2026-88377Medium6.22026-09-24Bento4 1.6.0.0 contains an integer underflow vulnerability in the avcC and hvcC configuration atom parsers. A specially crafted MP4 file containing an atom wit…
CVE-2026-88376High7.52026-09-24Bento4 1.6.0.0 contains an integer underflow vulnerability in AP4_AvccAtom::Create() and AP4_HvccAtom::Create(). A specially crafted MP4 file containing an avc…
CVE-2026-17504Medium5.12026-09-24IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vu…
CVE-2026-95958Low3.32026-09-23A security flaw has been discovered in JusticeRage Manalyze 1.0.0. Impacted is the function PE::_parse_relocations of the file manape/pe.cpp of the component P…
CVE-2026-81881Low3.32026-09-22radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Mach-O Swift field-metadata parser was vulnerable beca…
CVE-2026-94090Medium6.32026-09-20A security flaw has been discovered in JusticeRage Manalyze 1.0.0. The affected element is the function PE::_parse_debug of the file manape/pe.cpp of the compo…
CVE-2026-61720Medium6.22026-09-18FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the SF2 parser computes the DMOD modulator count as chunk…
CVE-2026-93599High7.52026-09-18rustls-webpki through 0.103.12 (and 0.104.0-alpha releases before 0.104.0-alpha.7) contains a reachable panic in bit_string_flags() in src/der.rs. The input gu…
CVE-2026-93395Medium5.32026-09-17A missing lower-bound validation in the bson_new_from_buffer() function of libbson allows an integer underflow when processing BSON data with a zero-length pre…
CVE-2026-44235Medium6.52026-09-17rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized HEADER or METHOD frame during clie…
CVE-2026-91103Critical9.82026-09-16HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentia…
CVE-2026-89028High7.52026-09-16MikroTik RouterOS before 7.24 contains a heap memory corruption vulnerability in the userspace SMB daemon that allows remote attackers to corrupt adjacent heap…
CVE-2026-91948High7.52026-09-15FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in server-side static virtual channel handling when CHANNEL_OPTION_SHOW_PROTOCOL is…
CVE-2026-90996Medium4.02026-09-14A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) respo…
CVE-2026-133262026-09-11An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause a denial of service or limited memory disclosure…
CVE-2026-81977Medium5.52026-09-08Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leve…
CVE-2026-66307High7.52026-09-08Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a network.
CVE-2026-78453Medium6.52026-09-08Integer underflow (wrap or wraparound) in Microsoft Windows SCSI Class System File allows an unauthorized attacker to disclose information over a network.
CVE-2026-77488Medium5.52026-09-08Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.
CVE-2026-72947Medium6.42026-09-08Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.
CVE-2026-71352High8.82026-09-08Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.
CVE-2026-69859High7.02026-09-08Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-69824Critical9.82026-09-08Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an unauthorized attacker to execute code over a network.
CVE-2026-69687High7.82026-09-08Integer underflow (wrap or wraparound) in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-69421High7.82026-09-08Integer underflow (wrap or wraparound) in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-69303Medium5.52026-09-08Out-of-bounds read in Push Message Routing Service allows an authorized attacker to disclose information locally.
CVE-2026-69276Critical9.82026-09-08Integer underflow (wrap or wraparound) in Microsoft UxTheme Library (uxtheme.dll) allows an unauthorized attacker to execute code over a network.
CVE-2026-69269High7.82026-09-08Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
CVE-2026-68827High8.02026-09-08Integer underflow (wrap or wraparound) in Windows GDI+ allows an authorized attacker to elevate privileges over a network.
CVE-2026-66767High7.72026-09-08SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a specially crafted packet that triggers reprocessing of a p…
CVE-2026-18355High7.52026-09-07A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), the wrapped-record length read fr…
CVE-2026-18341Medium6.32026-09-04IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to corrupt memory due to an integer underflow.
CVE-2026-85436High7.52026-09-03MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap me…
CVE-2026-96242026-09-01A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data…
CVE-2026-96222026-09-01A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic servic…
CVE-2026-82480High7.42026-08-30A security flaw has been discovered in NASA cFS up to 7.0.1. The affected element is the function CFE_SB_GetUserDataLength of the file src/cFS/cfe/modules/sb/f…
CVE-2026-54754Critical9.62026-08-28Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, marketplace settlement in core/kapp/market/market.go reads MarketOrderDa…
CVE-2026-82250Medium6.52026-08-28gitoxide gix-packetline versions before 0.21.5 contain a panic vulnerability in the TextRef implementation that occurs when processing side-band packet lines w…
CVE-2026-780112026-08-28An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) cond…
CVE-2026-193182026-08-28A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by se…
CVE-2026-193172026-08-28An out-of-bounds read vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) con…
CVE-2026-193142026-08-28An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) cond…
CVE-2026-714012026-08-27An integer underflow was found in the DHCPv4 packet capture code of wicked. ni_capture_inspect_udp_header() in src/capture.c does not verify that the IP total…
CVE-2026-18916High7.52026-08-26Any remote client can crash a NSD serve child, by throttling the TCP receive window after a TCP query. By continuously crashing the serve childs, the remote cl…