Out-of-Bounds Write Vulnerability in EtherNet IP Message Handler of liftoff-sr CIPster
CVE-2026-13592

6.9MEDIUM

Key Information:

Vendor

Liftoff-sr

Status
Cipster
Vendor
CVE Published:
29 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-13592?

A security flaw exists in the bufwriter append function of the EtherNet IP Message Handler within liftoff-sr CIPster, allowing for potential out-of-bounds write operations. This vulnerability could be exploited remotely, posing significant risks to application integrity and security. Users are strongly advised to apply the patch identified as 3a0159ed43125dcd024a1965f0289cb186bae9ff to mitigate this issue, as the vulnerability is publicly known and could be actively exploited.

Affected Version(s)

CIPster e8e9dba09bf56962807d3504b783ccdb6287f3e4

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-2026-13592 - Proof of Concept

References

https://vuldb.com/vuln/374596
vdb-entrytechnical-description
https://vuldb.com/vuln/374596/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13592
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

Chuan Wei
Carnegie (VulDB User)
Carnegie (VulDB User)
.