CVE-2025-41392
Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Out-of-bounds Read
No known exploitation. EPSS puts it in the 6th percentile. Fixed in 12.6.1204.204.
What to do
Find your product and version, then upgrade to the build on the right.
- Ashlar-Vellum CobaltAffected: < 12.6.1204.204Upgrade to: 12.6.1204.204Stated by: CVE record
- Ashlar-Vellum XenonAffected: < 12.6.1204.204Upgrade to: 12.6.1204.204Stated by: CVE record
- Ashlar-Vellum ArgonAffected: < 12.6.1204.204Upgrade to: 12.6.1204.204Stated by: CVE record
- Ashlar-Vellum LithiumAffected: < 12.6.1204.204Upgrade to: 12.6.1204.204Stated by: CVE record
- Ashlar-Vellum Cobalt ShareAffected: < 12.6.1204.204Upgrade to: 12.6.1204.204Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
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 AR files. This could lead to an out-of-bounds read. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 6th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 102 days, from the signal feeds we watch.
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Scored 7.8 by NVD.
How it is reached
- Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction RequiredA user must click a link, open a file, or perform some action
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for Cobalt, not every advisory.
A free account adds
- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
- Email alerts for the products you watch
- The same data over REST API, MCP and CLI