Deserialization of Untrusted Data in VectorStar - CVE-2025-15351
Published: January 7, 2026
Vulnerability identifier: #VU121040
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-15351
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can trick a victim to open a specially crafted CHX file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
VectorStar
How to mitigate CVE-2025-15351
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.