VStarcam O-KAM Client Stack-Based Buffer Overflow Vulnerability
CVE-2026-120336

6.9MEDIUM

Key Information:

Vendor

Vstarcam

Status
O-kam Client
Vendor
CVE Published:
2 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-120336?

A stack-based buffer overflow vulnerability exists in the VStarcam O-KAM Client version 1.3.3.32, specifically in the function FUN_10003EA0 within the DevDll_925.dll library. This flaw enables an attacker to execute arbitrary code remotely, posing significant security risks to affected systems. Despite the public disclosure of the exploit, the vendor has not provided a response or mitigation. Users are advised to take caution and look for updates or patches to protect their systems.

Affected Version(s)

O-KAM Client 1.3.3.32

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-2026-120336 - Proof of Concept

References

https://vuldb.com/vuln/429661
vdb-entrytechnical-description
https://vuldb.com/vuln/429661/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-120336
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

VulDB CNA Team
.