Buffer overflow in Cisco 1000_integrated_services_router
CVE-2017-12240
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The atta…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.139 (96.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco 1000_integrated_services_router
- Cisco 1100-4g_integrated_services_router
- Cisco 1100-4gltegb_integrated_services_router
- Cisco 1100-4gltena_integrated_services_router
- Cisco 1100-4p_integrated_services_router
- Cisco 1100-6g_integrated_services_router
- Cisco 1100-8p_integrated_services_router
- Cisco 1100_integrated_services_router
- Cisco 1100-lte_integrated_services_router
- Cisco 1101-4p_integrated_services_router
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2017-12240?
- CVE-2017-12240 is a critical-severity vulnerability in Cisco 1000_integrated_services_router, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-09-29.
- How severe is CVE-2017-12240?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-12240 known to be exploited?
- Yes. CVE-2017-12240 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.