What is CVE-2025-8000?

CVE-2025-8000 is a high-severity vulnerability in Ashlar-vellum Cobalt, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.8/10. Published 2025-09-17.

How severe is CVE-2025-8000?

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

Is CVE-2025-8000 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ashlar-vellum Cobalt

CVE-2025-8000

Ashlar-Vellum Cobalt LI File Parsing Type Confusion 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…

EPSS: 0.000 (15.1th 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 12 SP1

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

ZDI-25-718 (x_research-advisory)

Frequently asked questions

What is CVE-2025-8000?: CVE-2025-8000 is a high-severity vulnerability in Ashlar-vellum Cobalt, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.8/10. Published 2025-09-17.
How severe is CVE-2025-8000?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2025-8000 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.