Cyber Resilience

CVE-2025-46269

High

Published: 18 August 2025

Published
18 August 2025
Modified
28 November 2025
KEV Added
—
Patch
—
CVSS Score v4 8.4 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/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
EPSS Score 0.0004 13.8th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-46269 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Ashlar Argon. Its CVSS base score is 8.4 (High).

Operationally, ranked at the 13.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

to execute arbitrary code in the context of the current process.

CWE(s)
CWE-122

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

ashlar
argon
≤ 12.2.1204.204
ashlar
cobalt
≤ 12.2.1204.204
ashlar
cobalt share
≤ 12.2.1204.204
ashlar
lithium
≤ 12.2.1204.204
ashlar
xenon
≤ 12.2.1204.204

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References