Stack-Based Buffer Overflow in Tenda AC8 Router
CVE-2025-5798

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac8
Vendor
CVE Published:
6 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5798?

A stack-based buffer overflow vulnerability has been discovered in the Tenda AC8 router, specifically affecting the function fromSetSysTime located in /goform/SetSysTimeCfg. When the argument timeType is manipulated, it may allow an attacker to execute arbitrary code remotely. This vulnerability poses a significant risk as it has been publicly disclosed, making affected versions of the Tenda AC8 susceptible to potential exploitation.

Affected Version(s)

AC8 16.03.34.09

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-2025-5798 - Proof of Concept

References

https://vuldb.com/?id.311352
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311352
signaturepermissions-required
https://vuldb.com/?submit.591266
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

yhryhryhr_ (VulDB User)
.
CVE-2025-5798 : Stack-Based Buffer Overflow in Tenda AC8 Router