Buffer overflow in Tenda Ac18

CVE-2025-11120

A weakness has been identified in Tenda AC8 16.03.34.06. The affected element is the function formSetServerConfig of the file /goform/SetServerConfig. Executing manipulation can lead to buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be exploited.

Vulnerability class: Buffer Overflow

EPSS: 0.034 (87.6th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
  • cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
  • cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
  • cna@vuldb.com (issue-tracking, Exploit, exploit, Issue Tracking)
  • cna@vuldb.com (Product, product)

Frequently asked questions

What is CVE-2025-11120?
CVE-2025-11120 is a high-severity vulnerability in Tenda Ac18, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-09-28.
How severe is CVE-2025-11120?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2025-11120 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.