What is CVE-2021-34991?

CVE-2021-34991 is a high-severity vulnerability in Netgear Cax80, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2021-11-15.

How severe is CVE-2021-34991?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Netgear Cax80

CVE-2021-34991

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400v2 1.0.4.106_10.0.80 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists w…

Vulnerability class: Buffer Overflow

EPSS: 0.057 (92.0th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
zdi-disclosures@trendmicro.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-34991?: CVE-2021-34991 is a high-severity vulnerability in Netgear Cax80, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2021-11-15.
How severe is CVE-2021-34991?: High severity. CVSS v3 base score is 8.8 out of 10.