What is CVE-2026-9431?

CVE-2026-9431 is a high-severity vulnerability in Tenda F1202, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-25.

How severe is CVE-2026-9431?

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

Buffer overflow in Tenda F1202

CVE-2026-9431

A vulnerability was identified in Tenda F1202 1.2.0.20(408). This affects the function fromPptpUserAdd of the file /goform/PptpUserAdd. The manipulation of the argument opttype leads to stack-based buffer overflow. The attack can be initia…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (15.4th 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 F1202 — versions 1.2.0.20(408)

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-9431?: CVE-2026-9431 is a high-severity vulnerability in Tenda F1202, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-25.
How severe is CVE-2026-9431?: High severity. CVSS v3 base score is 8.8 out of 10.