CVE-2026-3271
Published: 27 February 2026
Description
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Security Summary
CVE-2026-3271 is a buffer overflow vulnerability affecting the Tenda F453 router on firmware version 1.0.0.3. The issue resides in the fromP2pListFilter function within the file /goform/P2pListFilterof of the httpd component. Manipulation of the "page" argument triggers the buffer overflow, as documented in the CVE description published on 2026-02-27.
The vulnerability enables remote exploitation over the network with low complexity and no user interaction required. Per the CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), it requires low privileges, such as those of an authenticated user, and allows attackers to achieve high impacts on confidentiality, integrity, and availability. It is linked to CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-120 (Buffer Copy without Checking Size of Input).
Advisories on VulDB (ctiid.347995, id.347995, submit.759601) provide details on the vulnerability, while a GitHub repository at https://github.com/Litengzheng/vul_db/blob/main/F453/vul_70/README.md hosts a public exploit that could be used. The Tenda vendor website (https://www.tenda.com.cn/) is referenced, though specific mitigation or patch guidance is not outlined in the available references.
The exploit has been made public, heightening the risk for exposed Tenda F453 devices running the affected firmware.
Details
- CWE(s)
Affected Products
MITRE ATT&CK Enterprise Techniques
Why these techniques?
Buffer overflow in the router's httpd web component (/goform/P2pListFilter) enables remote exploitation of a public-facing application with low privileges and no user interaction.