Buffer Overflow Vulnerability in Tenda O3V2 by Tenda
CVE-2025-7416

8.7HIGH

Key Information:

Vendor

Tenda
Status
O3v2
Vendor
CVE Published:
10 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7416?

A stack-based buffer overflow vulnerability exists in the Tenda O3V2 device, specifically within the function fromSysToolTime located in the /goform/setSysTimeInfo endpoint of the HTTP daemon. The vulnerability arises from the manipulation of the Time argument, allowing an attacker to execute arbitrary code remotely. The discovery of this flaw has been publicly disclosed, highlighting the urgency for users to address this security risk.

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Affected Version(s)

O3V2 1.0.0.12(3880)

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-2025-7416 - Proof of Concept

References

https://vuldb.com/?id.315876
vdb-entrytechnical-description
https://vuldb.com/?ctiid.315876
signaturepermissions-required
https://vuldb.com/?submit.608857
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

pjq123 (VulDB User)
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