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01 Record

CVE-2025-46269

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

HighPUBLISHEDCNA: icscert
CNA base score8.4 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.16% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 5.8% of scored records. A rank, not a probability.
NVD base score
8.4 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
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
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-08-18 21:11Z1 YR AGO
Last updated
2025-08-19 13:27Z1 YR AGO
Reserved
2025-07-08
Assigning CNA
icscert
Record state
PUBLISHED
Severity
High (CVSS 8.4)
CNA CVSS vector
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
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
Data version
5.1
Document digest
6bb1801e0218265f386641f92570125e25bda642ae427a3c38e0c5ad4b803013

05 Affected products

VendorProductVersionsPlatforms
Ashlar-VellumCobalt0 to < 12.6.1204.204—
Ashlar-VellumXenon0 to < 12.6.1204.204—
Ashlar-VellumArgon0 to < 12.6.1204.204—
Ashlar-VellumLithium0 to < 12.6.1204.204—
Ashlar-VellumCobalt Share0 to < 12.6.1204.204—

06 References

07 Remediation

Ashlar-Vellum recommends users update to Versions 12.6.1204.204 and above https://download.ashlar.com/v12/index.html of the affected products. * Ashlar-Vellum strongly recommends that all users update Cobalt, Xenon, Argon, Lithium, and Cobalt Share to the latest supported version by selecting Help > Check Web for Updates from the application's main menu. * Users should only open CO/XE/AR/LI files or import supported file formats from trusted sources.