CVE-2025-65084

CRITICAL
Published Nov 25, 2025 Modified May 12, 2026 CWE-787

Description

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
ashlar argon
ashlar cobalt
ashlar cobalt_share
ashlar lithium
ashlar xenon

References

Frequently Asked Questions

What is CVE-2025-65084? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-65084? +
CVE-2025-65084 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-65084? +
CVE-2025-65084 affects products from ashlar, specifically: argon, cobalt, cobalt_share, lithium, xenon. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-65084? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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