CVE-2023-34304
CVE-2023-34304 is a high-severity vulnerability in Ashlar Cobalt 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (32nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-38385
- Weakness: CWE-787
- Affected product: Ashlar Cobalt
- Published:
- Last modified:
Description
Ashlar-Vellum Cobalt Out-Of-Bounds Access Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. 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 IGS files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-18006.
Frequently asked questions
- What is CVE-2023-34304?
- Ashlar-Vellum Cobalt Out-Of-Bounds Access Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. 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 IGS files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-18006.
- How severe is CVE-2023-34304?
- CVE-2023-34304 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-2023-34304 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-34304?
- CVE-2023-34304 affects Ashlar Cobalt. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-34304?
- 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-2023-34304 have an EU (EUVD) identifier?
- Yes. CVE-2023-34304 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38385.
- When was CVE-2023-34304 published?
- CVE-2023-34304 was published on 2024-05-03 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ashlar:cobalt:*:*:*:*:*:*:*:*
More vulnerabilities in Ashlar Cobalt
- CVE-2025-65085 — Critical (CVSS 9.8): A Heap-based Buffer Overflow vulnerability is present in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share…
- 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-2023-34293 — High (CVSS 8.8): Ashlar-Vellum Cobalt Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote…
- 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…
All CVEs affecting Ashlar Cobalt →
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