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.

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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)
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