What is CVE-2025-4896?

CVE-2025-4896 is a high-severity vulnerability in Tenda Ac10, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-05-18.

How severe is CVE-2025-4896?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tenda Ac10

CVE-2025-4896

A vulnerability was found in Tenda AC10 16.03.10.13 and classified as critical. Affected by this issue is some unknown functionality of the file /goform/UserCongratulationsExec. The manipulation of the argument getuid leads to buffer overf…

Vulnerability class: Buffer Overflow

EPSS: 0.007 (73.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda Ac10 — versions 16.03.10.13

Weakness classification (CWE)

References

VDB-309452 | Tenda AC10 UserCongratulationsExec buffer overflow (vdb-entry, technical-description)
VDB-309452 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #578034 | Tenda AC10V4.0 V16.03.10.13 Buffer Overflow (third-party-advisory)
github.com/byxs0x0/cve2/blob/main/Tenda AC10.md (exploit)
www.tenda.com.cn/ (product)

Frequently asked questions

What is CVE-2025-4896?: CVE-2025-4896 is a high-severity vulnerability in Tenda Ac10, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-05-18.
How severe is CVE-2025-4896?: High severity. CVSS v3 base score is 8.8 out of 10.