Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow Remote Code Execution Vulnerability
Published Mar 11, 2025
7.8
HIGHCVSS 3.0
EPSS 0.27%
Description
Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow 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 CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.
Affected products
-
- Version 1204.91StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Ashlar-Vellum | Cobalt | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Mar 12, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.27% (0.00272) | 17.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.26% (0.00264) | 17.51th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00040) | 9.12th | v4 (v2025.03.14) |
| Mar 12, 2025 | 0.04% (0.00043) | 11.94th | v3 (v2023.03.01) |
References (1)
- https://www.zerodayinitiative.com/advisories/ZDI-25-121/ x_research-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-25-121/ | x_research-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.