Denial of Service Vulnerability in tsMuxer by justdan96
CVE-2026-7739

4.8MEDIUM

Key Information:

Vendor

Justdan96

Status
Tsmuxer
Vendor
CVE Published:
4 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7739?

A local vulnerability has been discovered in the tsMuxer software developed by justdan96, specifically affecting the HevcVpsUnit::setFPS function located in hevc.cpp file. This issue arises from improper handling of the 'track_id' argument, potentially leading to a denial of service condition. Exploiting this flaw requires local access, and publicly available exploit techniques have been shared, making the affected software versions particularly at risk, especially since they are no longer maintained by the vendor.

Affected Version(s)

tsMuxer 2.0

tsMuxer 2.1

tsMuxer 2.2

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-2026-7739 - Proof of Concept

References

https://vuldb.com/vuln/360914
vdb-entrytechnical-description
https://vuldb.com/vuln/360914/cti
signaturepermissions-required
https://vuldb.com/submit/807647
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
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

Fantasy (VulDB User)
.