How severe is CVE-2025-65085?

CVE-2025-65085 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-65085 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65085?

CVE-2025-65085 primarily affects Ashlar Argon. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-65085?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-65085 have an EU (EUVD) identifier?

Yes. CVE-2025-65085 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199616.

When was CVE-2025-65085 published?

CVE-2025-65085 was published on 2025-11-25 and last updated on 2026-06-17.

CVE-2025-65085

CVE-2025-65085 is a critical-severity vulnerability in Ashlar Argon with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 8.4
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-199616
Weakness: CWE-122
Affected product: Ashlar Argon
Published: 2025-11-25
Last modified: 2026-06-17

Description

A Heap-based Buffer Overflow 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.

Frequently asked questions

What is CVE-2025-65085?: A Heap-based Buffer Overflow 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.
How severe is CVE-2025-65085?: CVE-2025-65085 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-65085 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65085?: CVE-2025-65085 primarily affects Ashlar Argon. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-65085?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-65085 have an EU (EUVD) identifier?: Yes. CVE-2025-65085 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199616.
When was CVE-2025-65085 published?: CVE-2025-65085 was published on 2025-11-25 and last updated on 2026-06-17.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-329-01

Affected products (5)

cpe:2.3:a:ashlar:argon:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:cobalt_share:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:lithium:*:*:*:*:*:*:*:*
cpe:2.3:a:ashlar:xenon:*:*:*:*:*:*:*:*

More vulnerabilities in Ashlar Argon

CVE-2025-65084 — Critical (CVSS 9.8): An Out-of-Bounds Write vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share…
CVE-2023-44438 — High (CVSS 8.8): Ashlar-Vellum Argon Uncontrolled Search Path Element Remote Code Execution Vulnerability. This vulnerability allows…
CVE-2025-65088 — High (CVSS 7.8): An Out-of-Bounds Read vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share…
CVE-2025-65087 — High (CVSS 7.8): An Out-of-Bounds Read vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share…
CVE-2025-65086 — High (CVSS 7.8): An Out-of-Bounds Write vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share…
CVE-2025-52584 — High (CVSS 7.8): In Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions prior to 12.6.1204.204, the affected…

All CVEs affecting Ashlar Argon →

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