CVE-2021-31624

8.8 highEPSS 1.1%

High (8.8) in tendacn ac9 firmware. EPSS 1.1% chance of exploitation in the next 30 days.

Buffer Overflow vulnerability in Tenda AC9 V1.0 through V15.03.05.19(6318), and AC9 V3.0 V15.03.06.42_multi, allows attackers to execute arbitrary code via the urls parameter.

Severity

CVSS 3.1

8.8 high

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2021-10-29
Modified: 2026-07-09
Record from: the NVD, synced 2026-10-19

Affected

tendacn:ac9_firmware

References

https://github.com/Lyc-heng/routers/blob/main/routers/stack2.md
https://github.com/Lyc-heng/routers/blob/main/routers/stack2.md

Check your stack JSON