What is CVE-2025-11465?

CVE-2025-11465 is a high-severity vulnerability in Ashlar-vellum Cobalt, classified under Use After Free. CVSS score: 7.8/10. Published 2025-10-29.

How severe is CVE-2025-11465?

High severity. CVSS v3 base score is 7.8 out of 10.

Use After Free in Ashlar-vellum Cobalt

CVE-2025-11465

Ashlar-Vellum Cobalt CO File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required t…

Vulnerability class: Use-After-Free

EPSS: 0.001 (16.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Ashlar-vellum Cobalt — versions 1204.97

Weakness classification (CWE)

CWE-416 — Use After Free

References

ZDI-25-956 (x_research-advisory)

Frequently asked questions

What is CVE-2025-11465?: CVE-2025-11465 is a high-severity vulnerability in Ashlar-vellum Cobalt, classified under Use After Free. CVSS score: 7.8/10. Published 2025-10-29.
How severe is CVE-2025-11465?: High severity. CVSS v3 base score is 7.8 out of 10.