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TI-2025-40237 Aliases CVE-2025-65084GHSA-q6jp-hmvq-crfr

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

Priority LOW 38CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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 disclose information or execute arbitrary code.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00354 29th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Ashlar-VellumCobaltup to 12.6.1204.216—No fix listedCNA
Ashlar-VellumXenonup to 12.6.1204.216—No fix listedCNA
Ashlar-VellumArgonup to 12.6.1204.216—No fix listedCNA
Ashlar-VellumLithiumup to 12.6.1204.216—No fix listedCNA
Ashlar-VellumCobalt Shareup to 12.6.1204.216—No fix listedCNA
  • Cobalt VendorAshlar-Vellum Affected up to 12.6.1204.216 Fixed in — No fix listed CNA
  • Xenon VendorAshlar-Vellum Affected up to 12.6.1204.216 Fixed in — No fix listed CNA
  • Argon VendorAshlar-Vellum Affected up to 12.6.1204.216 Fixed in — No fix listed CNA
  • Lithium VendorAshlar-Vellum Affected up to 12.6.1204.216 Fixed in — No fix listed CNA
  • Cobalt Share VendorAshlar-Vellum Affected up to 12.6.1204.216 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:*up to 12.2.1204.207VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:*up to 12.2.1204.207VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:*up to 12.2.1204.207VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:*up to 12.2.1204.207VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:*up to 12.2.1204.207VulnerableAshlar-Vellum
  • cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:* Versions up to 12.2.1204.207 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:* Versions up to 12.2.1204.207 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:* Versions up to 12.2.1204.207 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:* Versions up to 12.2.1204.207 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:* Versions up to 12.2.1204.207 Vulnerable ·Ashlar-Vellum

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-65084
  2. 2026-10-03 Alias added: GHSA-q6jp-hmvq-crfr

References

Advisory 1

  • TI-2023-23944 Uncontrolled search path in Ashlar-Vellum Argon CVSS 3.1HIGH 8.8
  • TI-2025-40238 Heap-based Buffer Overflow in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
  • TI-2025-40241 Out-of-bounds read in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
  • TI-2025-40240 Out-of-bounds read in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
  • TI-2025-40239 Out-of-bounds write in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
  • TI-2025-33618 Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Out-of-bounds Write CVSS 4.0HIGH 8.4
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences