Buffer overflow in Netgear Multiple Routers
CVE-2021-27239
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400 and R6700 firmware version 1.0.4.98 routers. Authentication is not required to exploit this vulnerability. The specif…
Vulnerability class: Buffer Overflow
EPSS: 0.026 (85.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Netgear Multiple Routers — versions firmware version 1.0.4.98
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zerodayinitiative.com/advisories/ZDI-21-206/ (x_refsource_MISC)
- kb.netgear.com/000062820/Security-Advisory-for-Stack-based-Buffer-Overflow-Remo… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-27239?
- CVE-2021-27239 is a high-severity vulnerability in Netgear Multiple Routers, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2021-03-29.
- How severe is CVE-2021-27239?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-27239 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.