Stack-Based Buffer Overflow in Tenda AC9 Router by Tenda
CVE-2026-2192

8.6HIGH

Key Information:

Vendor

Tenda
Status
Ac9
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2192?

A security vulnerability affecting the Tenda AC9 router has been identified, specifically in its function formGetRebootTimer. By manipulating arguments like sys.schedulereboot.start_time and sys.schedulereboot.end_time, an attacker can induce a stack-based buffer overflow. This vulnerability can be exploited remotely, posing a significant risk to users as the exploit has been publicly disclosed.

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Affected Version(s)

AC9 15.03.06.42_multi

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-2026-2192 - Proof of Concept

References

https://vuldb.com/?id.344895
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344895
signaturepermissions-required
https://vuldb.com/?submit.749801
third-party-advisory

CVSS V4

Score:
8.6
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

jfkk (VulDB User)
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