CVE-2023-34306
CVE-2023-34306 is a high-severity vulnerability in Ashlar Graphite with a CVSS 3.x base score of 8.8. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-38387
- Weakness: CWE-787
- Affected product: Ashlar Graphite
- Published:
- Last modified:
Description
Ashlar-Vellum Graphite VC6 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of VC6 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-18908.
Frequently asked questions
- What is CVE-2023-34306?
- Ashlar-Vellum Graphite VC6 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of VC6 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-18908.
- How severe is CVE-2023-34306?
- CVE-2023-34306 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-34306 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-34306?
- CVE-2023-34306 affects Ashlar Graphite. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-34306?
- 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.
- Does CVE-2023-34306 have an EU (EUVD) identifier?
- Yes. CVE-2023-34306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38387.
- When was CVE-2023-34306 published?
- CVE-2023-34306 was published on 2024-05-03 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ashlar:graphite:13.0.46:*:*:*:*:*:*:*
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-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…
- CVE-2025-7983 — High (CVSS 7.8): Ashlar-Vellum Graphite VC6 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This…
All CVEs affecting Ashlar Graphite →
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