Buffer overflow in Ashlar Argon
CVE-2025-65086
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Ashlar Argon
- Ashlar Cobalt
- Ashlar Cobalt Share
- Ashlar Lithium
- Ashlar Xenon
- Ashlar-Vellum Argon — versions 0
- Ashlar-Vellum Cobalt — versions 0
- Ashlar-Vellum Cobalt Share — versions 0
- Ashlar-Vellum Lithium — versions 0
- Ashlar-Vellum Xenon — versions 0
Weakness classification (CWE)
References
- www.cisa.gov/news-events/ics-advisories/icsa-25-329-01 (US Government Resource, Third Party Advisory, government-resource)
Frequently asked questions
- What is CVE-2025-65086?
- CVE-2025-65086 is a high-severity vulnerability in Ashlar Argon, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-05-12.
- How severe is CVE-2025-65086?
- High severity. CVSS v3 base score is 7.8 out of 10.