How severe is CVE-2023-39936?

CVE-2023-39936 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-39936 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39936?

CVE-2023-39936 affects Ashlar Graphite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39936?

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

When was CVE-2023-39936 published?

CVE-2023-39936 was published on 2023-10-26 and last updated on 2026-06-17.

CVE-2023-39936

CVE-2023-39936 is a high-severity vulnerability in Ashlar Graphite with a CVSS 3.x base score of 7.8. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Ashlar Graphite
Published: 2023-10-26
Last modified: 2026-06-17

Description

In Ashlar-Vellum Graphite v13.0.48, the affected application lacks proper validation of user-supplied data when parsing VC6 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.

Frequently asked questions

What is CVE-2023-39936?: In Ashlar-Vellum Graphite v13.0.48, the affected application lacks proper validation of user-supplied data when parsing VC6 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.
How severe is CVE-2023-39936?: CVE-2023-39936 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-39936 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39936?: CVE-2023-39936 affects Ashlar Graphite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39936?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-39936 published?: CVE-2023-39936 was published on 2023-10-26 and last updated on 2026-06-17.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-03

Affected products (1)

cpe:2.3:a:ashlar:graphite:*:*:*:*:*:*:*:*

More vulnerabilities in Ashlar Graphite

CVE-2023-34308 — High (CVSS 8.8): Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability…
CVE-2023-34307 — High (CVSS 8.8): Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability…
CVE-2023-34306 — High (CVSS 8.8): Ashlar-Vellum Graphite VC6 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This…
CVE-2025-7988 — High (CVSS 7.8): Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability…
CVE-2025-7987 — High (CVSS 7.8): Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability…
CVE-2025-7986 — High (CVSS 7.8): Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability…

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
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