CVE-2023-39936: In Ashlar-Vellum Graphite v13.0.48, the affected application lacks proper validation of user-supplied data

Q: How do I fix CVE-2023-39936?

graphite: upgrade to newer than 13.0.48. Exact commands for each OS are on this page.

Q: Is CVE-2023-39936 being exploited?

CVE-2023-39936 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-39936 affect?

CVE-2023-39936 affects graphite. Severity is high (CVSS 7.8). 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 arbitra

Routine

HIGH 7.8UPGRADE

CVE-2023-39936 is a high-severity flaw (CVSS 7.8) affecting graphite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-125
Published	2023-10-26
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: ashlar

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-10-26 20:15 UTCPublished CVE record published
2026-06-17 06:12 UTCUpdated Record last modified

ashlar graphite UPGRADE

Affected: <= 13.0.48

Fixed in: newer than 13.0.48

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy graphite || rpm -q graphite || graphite --version

2. UPGRADE to newer than 13.0.48 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade graphite

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade graphite

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-39936?

graphite: upgrade to newer than 13.0.48. Exact commands for each OS are on this page.

Is CVE-2023-39936 being exploited?

CVE-2023-39936 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-39936 affect?

CVE-2023-39936 affects graphite. Severity is high (CVSS 7.8). 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 arbitra

How urgent is CVE-2023-39936?

Priority 36/100. High severity

Related CVEs

CVE-2024-13051 HIGH 7.8 DOWNGRADE Ashlar-Vellum Graphite VC6 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2024-13050 HIGH 7.8 DOWNGRADE Ashlar-Vellum Graphite VC6 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2023-39427 HIGH 7.8 UPGRADE UPGRADE In Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share v12 SP0 Build (1204.77), the affected applic
CVE-2023-34308 HIGH 8.8 DOWNGRADE Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
CVE-2023-34307 HIGH 8.8 DOWNGRADE Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

References

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