CVE-2021-31802
NETGEAR R7000 1.0.11.116 devices have a heap-based Buffer Overflow that is exploitable from the local network without authentication.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 14.2%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
NETGEAR R7000 1.0.11.116 devices have a heap-based Buffer Overflow that is exploitable from the local network without authentication. The vulnerability exists within the handling of an HTTP request. An attacker can leverage this to execute code as root. The problem is that a user-provided length value is trusted during a backup.cgi file upload. The attacker must add a \n before the Content-Length header.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 14.18% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- netgear/r7000 firmware
- Source
- cve@mitre.org
References
- https://ssd-disclosure.com/ssd-advisory-netgear-nighthawk-r7000-httpd-preauth-rce/Exploit, Third Party Advisory
- https://www.netgear.com/about/security/Vendor Advisory
- https://ssd-disclosure.com/ssd-advisory-netgear-nighthawk-r7000-httpd-preauth-rce/Exploit, Third Party Advisory
- https://www.netgear.com/about/security/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.