What is CVE-2023-27019?

CVE-2023-27019 is a critical-severity vulnerability in Tenda Ac10, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-04-07.

How severe is CVE-2023-27019?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Tenda Ac10

CVE-2023-27019

Tenda AC10 US_AC10V4.0si_V16.03.10.13_cn was discovered to contain a stack overflow via the sub_458FBC function. This vulnerability allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted payload.

Vulnerability class: Buffer Overflow

Published 2023-04-07 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.011 (63.8th percentile), scored 2026-10-08.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Tenda Ac10 — versions 4.0
Tenda Ac10 Firmware — versions 16.03.10.13_cn

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/DrizzlingSun/Tenda/blob/main/AC10/8/8.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-27019?: CVE-2023-27019 is a critical-severity vulnerability in Tenda Ac10, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-04-07.
How severe is CVE-2023-27019?: Critical severity. CVSS v3 base score is 9.8 out of 10.