A Heap-based Buffer Overflow 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 disclose information or execute arbitrary code.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00123.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Ashlar-Vellum Cobalt unaffected
Version Status Constraints
0 affected ≤ 12.6.1204.216
Ashlar-Vellum Xenon unaffected
Version Status Constraints
0 affected ≤ 12.6.1204.216
Ashlar-Vellum Argon unaffected
Version Status Constraints
0 affected ≤ 12.6.1204.216
Ashlar-Vellum Lithium unaffected
Version Status Constraints
0 affected ≤ 12.6.1204.216
Ashlar-Vellum Cobalt Share unaffected
Version Status Constraints
0 affected ≤ 12.6.1204.216

Configuration 1 [-]

OR cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:*

No data.

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Vendors Products
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Cobalt Subscribe
Lithium Subscribe
Xenon Subscribe

Project Subscriptions

Vendors Products
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Argon Subscribe
Cobalt Subscribe
Cobalt Share Subscribe
Lithium Subscribe
Xenon Subscribe
Advisories

No advisories yet.

Fixes

Solution

Ashlar-Vellum recommends users update to build 12.6.1204.217 and later.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.cisa.gov/news-events/ics-advisories/icsa-25-329-01 cve-icon cve-icon
History

Tue, 12 May 2026 21:00:00 +0000

Type Values Removed Values Added
Description A Heap-based Buffer Overflow vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions 12.6.1204.207 and prior that could allow an attacker to disclose information or execute arbitrary code. A Heap-based Buffer Overflow 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 disclose information or execute arbitrary code.

Fri, 06 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 28 Nov 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Ashlar cobalt Share
CPEs cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:*
Vendors & Products Ashlar cobalt Share
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Thu, 27 Nov 2025 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Ashlar
Ashlar argon
Ashlar cobalt
Ashlar lithium
Ashlar xenon
Vendors & Products Ashlar
Ashlar argon
Ashlar cobalt
Ashlar lithium
Ashlar xenon

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
Description A Heap-based Buffer Overflow vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions 12.6.1204.207 and prior that could allow an attacker to disclose information or execute arbitrary code.
Title Heap-based Buffer Overflow in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share
Weaknesses CWE-122
References
Metrics cvssV4_0

{'score': 8.4, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-05-12T20:19:10.639Z

Reserved: 2025-11-17T16:43:44.054Z

Link: CVE-2025-65085

cve-icon Vulnrichment

Updated: 2025-11-25T20:22:17.119Z

cve-icon NVD

Status : Modified

Published: 2025-11-25T18:15:54.283

Modified: 2026-05-12T21:16:13.290

Link: CVE-2025-65085

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-27T09:45:49Z

Weaknesses