CVE-2025-65086

Out-of-bounds write in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share

State: Published
Severity: 8.4 High
Published: May 12, 2026
Updated: May 12, 2026
Reserved: Nov 17, 2025

Description

An Out-of-Bounds Write vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions 12.6.1204.216 and prior that could allow an attacker to execute arbitrary code when a specially crafted VC6 file is being parsed.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	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	icscert

Weaknesses

CWE-787 Out-of-bounds write

Affected Products

Product	Versions
CobaltAshlar-Vellum	12.6.1204.216 and earlierAffected
XenonAshlar-Vellum	12.6.1204.216 and earlierAffected
ArgonAshlar-Vellum	12.6.1204.216 and earlierAffected
LithiumAshlar-Vellum	12.6.1204.216 and earlierAffected
Cobalt ShareAshlar-Vellum	12.6.1204.216 and earlierAffected

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-329-01government-resource

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