CVE-2022-27022

9.8 criticalEPSS 1.7%

Critical (9.8) in tenda ac9 firmware. EPSS 1.7% chance of exploitation in the next 30 days.

There is a stack overflow vulnerability in the SetSysTimeCfg() function in the httpd service of Tenda AC9 V15.03.2.21_cn. The attacker can obtain a stable root shell through a constructed payload.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2022-04-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:ac9_firmware

References

https://github.com/EPhaha/IOT_vuln/tree/main/Tenda/AC9/14
https://github.com/EPhaha/IOT_vuln/tree/main/Tenda/AC9/14

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