Ashlar-Vellum Cobalt XE File Parsing Uninitialized Memory Remote Code Execution…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-824 and the CVSS impact.
Summary
Ashlar-Vellum Cobalt XE File Parsing Uninitialized Memory 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 XE files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-20200.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Ashlar-Vellum | Cobalt | Ashlar-Vellum Cobalt 12 beta build 1204.59 | — | No fix listed | CNA |
- Cobalt VendorAshlar-Vellum Affected Ashlar-Vellum Cobalt 12 beta build 1204.59 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ashlar:cobalt:12.0.1204.59:*:*:*:*:*:*:* | 12.0.1204.59 | Vulnerable | Ashlar-Vellum |
- cpe:2.3:a:ashlar:cobalt:12.0.1204.59:*:*:*:*:*:*:* Versions 12.0.1204.59 Vulnerable ·Ashlar-Vellum
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-35712
- 2026-10-03 Alias added: GHSA-vvq3-82m9-8cmj
References
Advisory 1
More Ashlar-Vellum Cobalt vulnerabilities
- TI-2023-17127 Out-of-bounds write in Ashlar-Vellum Cobalt CVSS 3.1HIGH 8.8
- TI-2025-40238 Heap-based Buffer Overflow in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
- TI-2025-40241 Out-of-bounds read in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
- TI-2025-40240 Out-of-bounds read in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
- TI-2025-40239 Out-of-bounds write in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
- TI-2025-40237 Out-of-bounds Write in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share CVSS 4.0HIGH 8.4
Sources
- CVE-2023-35712 · CVE Program
- CVE-2023-35712 · NVD
- FIRST EPSS
- GHSA-vvq3-82m9-8cmj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences