Use-after-free in Cobalt - CVE-2025-11465
Published: October 20, 2025
Vulnerability identifier: #VU117387
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-11465
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Ashlar-Vellum
Affected software:
Cobalt
Cobalt
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error. A remote attacker can trick a victim to open a specially crafted CO file and execute arbitrary code on the target system.
How to mitigate CVE-2025-11465
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.