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TI-2025-29021 Aliases CVE-2025-46269GHSA-2xrm-mj2g-mf72

Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Heap-based Buffer Overflow

Priority LOW 38CWE-122Published · 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
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

In Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions prior to 12.6.1204.204, the affected applications lack proper validation of user-supplied data when parsing VC6 files. This could lead to a heap-based buffer overflow. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00167 5th percentileScored 2026-11-07
Fix Fixed Cobalt (Ashlar-Vellum): 12.6.1204.204Xenon (Ashlar-Vellum): 12.6.1204.204+3 more products

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-VellumCobaltbefore 12.6.1204.20412.6.1204.204Patch availableCNA
Ashlar-VellumXenonbefore 12.6.1204.20412.6.1204.204Patch availableCNA
Ashlar-VellumArgonbefore 12.6.1204.20412.6.1204.204Patch availableCNA
Ashlar-VellumLithiumbefore 12.6.1204.20412.6.1204.204Patch availableCNA
Ashlar-VellumCobalt Sharebefore 12.6.1204.20412.6.1204.204Patch availableCNA
  • Cobalt VendorAshlar-Vellum Affected before 12.6.1204.204 Fixed in 12.6.1204.204 Patch available CNA
  • Xenon VendorAshlar-Vellum Affected before 12.6.1204.204 Fixed in 12.6.1204.204 Patch available CNA
  • Argon VendorAshlar-Vellum Affected before 12.6.1204.204 Fixed in 12.6.1204.204 Patch available CNA
  • Lithium VendorAshlar-Vellum Affected before 12.6.1204.204 Fixed in 12.6.1204.204 Patch available CNA
  • Cobalt Share VendorAshlar-Vellum Affected before 12.6.1204.204 Fixed in 12.6.1204.204 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:*before 12.2.1204.204VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:*before 12.2.1204.204VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:*before 12.2.1204.204VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:*before 12.2.1204.204VulnerableAshlar-Vellum
cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:*before 12.2.1204.204VulnerableAshlar-Vellum
  • cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:* Versions before 12.2.1204.204 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:* Versions before 12.2.1204.204 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:* Versions before 12.2.1204.204 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:* Versions before 12.2.1204.204 Vulnerable ·Ashlar-Vellum
  • cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:* Versions before 12.2.1204.204 Vulnerable ·Ashlar-Vellum

Remediation

  • Fix · CNA Cobalt (Ashlar-Vellum) Fixed in 12.6.1204.204
  • Fix · CNA Xenon (Ashlar-Vellum) Fixed in 12.6.1204.204
  • Fix · CNA Argon (Ashlar-Vellum) Fixed in 12.6.1204.204
  • Fix · CNA Lithium (Ashlar-Vellum) Fixed in 12.6.1204.204
  • Fix · CNA Cobalt Share (Ashlar-Vellum) Fixed in 12.6.1204.204

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Ashlar-Vellum Argon, Cobalt and 3 more products 12.6.1204.204

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2025-33618 Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Out-of-bounds WritePriority LOW 38
    • TI-2025-32679 Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Heap-based Buffer OverflowPriority LOW 38
    • TI-2025-27570 Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Out-of-bounds ReadPriority LOW 38
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-46269
  2. 2026-10-03 Alias added: GHSA-2xrm-mj2g-mf72

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-2025-40237 Out-of-bounds Write in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share 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