CVE-2025-65086

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

HIGH
7.8
CVSS Score
Published: May 12, 2026 at 08:22 PM UTC
Updated: October 14, 2026 at 01:10 PM UTC
9 products affected across 2 vendorsCobaltXenonLithium

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versionsv ≤ 12.6.1204.216
All versionsv ≤ 12.6.1204.216
All versionsv ≤ 12.6.1204.216
All versionsv ≤ 12.6.1204.216
All versionsv ≤ 12.6.1204.216
0 ≤ v ≤ 12.6.1204.216
0 ≤ v ≤ 12.6.1204.216
0 ≤ v ≤ 12.6.1204.216
0 ≤ v ≤ 12.6.1204.216

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

US Government ResourceThird Party Advisory
Source: cverecord
https://www.cisa.gov/news-events/ics-advisories/icsa-25-329-01

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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