Buffer overflow in Tenda Ac9

CVE-2022-27016

There is a stack overflow vulnerability in the SetStaticRouteCfg() function in the httpd service of Tenda AC9 15.03.2.21_cn.

Vulnerability class: Buffer Overflow

EPSS: 0.017 (74.7th 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

Tenda Ac9
Tenda Ac9_firmware — versions 15.03.2.21_cn
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

hogehuga/epss-db

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-27016?: CVE-2022-27016 is a critical-severity vulnerability in Tenda Ac9, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-04-07.
How severe is CVE-2022-27016?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-27016 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.