Vulnerability · Published May 6, 2025 · Assigned by VulDB

CVE-2025-4356Tenda DAP-1520 Authentication storage mod_graph_auth_uri_handler stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in DAP-1520 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.6%top 24.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02. It has been declared as critical. This vulnerability affects the function mod_graph_auth_uri_handler of the file /storage of the component Authentication Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
Tenda	DAP-1520	1.10B04_BETA02

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

VDB-307474 | Tenda DAP-1520 Authentication storage mod_graph_auth_uri_handler stack-based overflow vdb-entry, technical-description
VDB-307474 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #564722 | Tenda DAP-1520 1.10B04_BETA02 stack-based Buffer Overflow third-party-advisory
https://github.com/Ghostsuzhijian/Iot-/blob/main/dap1520_mod_graph_auth_uri_handler/dap1520_mod_graph_auth_uri_handler.md exploit
https://www.tenda.com.cn/ product