Buffer overflow in NETGEAR R6700
CVE-2020-10924
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9643.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.873 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.873 · newest: 0.873 · change: 0.000
Affected products
- NETGEAR R6700 — versions V1.0.4.84_10.0.58
- NETGEAR R6700 Firmware — versions 1.0.4.84_10.0.58
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zerodayinitiative.com/advisories/ZDI-20-704/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10924?
- CVE-2020-10924 is a high-severity vulnerability in NETGEAR R6700, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2020-07-28.
- How severe is CVE-2020-10924?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-10924 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.