CVE-2025-65085
published 2025-11-25CVE-2025-65085: 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…
PriorityP355critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.39%
30.7th percentile
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.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ashlar-vellum | argon | <= 12.6.1204.216 | — |
| ashlar-vellum | cobalt | <= 12.6.1204.216 | — |
| ashlar-vellum | cobalt_share | <= 12.6.1204.216 | — |
| ashlar-vellum | lithium | <= 12.6.1204.216 | — |
| ashlar-vellum | xenon | <= 12.6.1204.216 | — |
| ashlar | argon | <= 12.2.1204.207 | — |
| ashlar | cobalt | <= 12.2.1204.207 | — |
| ashlar | cobalt_share | <= 12.2.1204.207 | — |
| ashlar | lithium | <= 12.2.1204.207 | — |
| ashlar | xenon | <= 12.2.1204.207 | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.4HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-frm4-p95x-pr4g: A Heap-based Buffer Overflow vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions 12
ghsa_unreviewed·2025-11-25
CVE-2025-65085 [HIGH] CWE-122 GHSA-frm4-p95x-pr4g: A Heap-based Buffer Overflow vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions 12
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.
CISA ICS
Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share
cisa_ics·2025-11-25·CVSS 9.8
[CRITICAL] Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share
ICS Advisory
##
Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share
Release DateNovember 25, 2025
Alert CodeICSA-25-329-01
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v4 8.4
- ATTENTION: Low attack complexity
- Vendor: Ashlar-Vellum
- Equipment: Cobalt, Xenon, Argon, Lithium, Cobalt Share
- Vulnerabilities: Out-of-Bounds Write, Heap-based Buffer Overflow
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to disclose information or execute arbitrary code.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
The following Ashlar-Vellum products are affected:
- Cobalt: Versions 12.6.1204.207 and prior
- Xenon: Versions 12.6.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-11-25
Published