Buffer Overflow Vulnerability in Tenda AC20 Router
CVE-2025-8160

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac20
Vendor
CVE Published:
25 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8160?

A buffer overflow vulnerability has been identified in the Tenda AC20 router, specifically within the SetSysTimeCfg function of the httpd component. This flaw allows an attacker to manipulate the timeZone argument, leading to a potential remote exploit. The vulnerability affects Tenda AC20 devices running software versions up to 16.03.08.12, posing significant security risks to users. It's critical to apply recommended security measures to mitigate the threat posed by this public exploit.

Affected Version(s)

AC20 16.03.08.0

AC20 16.03.08.1

AC20 16.03.08.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-8160 - Proof of Concept

References

https://vuldb.com/?id.317574
vdb-entrytechnical-description
https://vuldb.com/?ctiid.317574
signaturepermissions-required
https://vuldb.com/?submit.620625
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

BabyShark (VulDB User)
.