CVE-2025-7982: Ashlar-Vellum Cobalt · Integer Overflow or Wraparound
Affects Ashlar-Vellum CobaltSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Ashlar-Vellum Cobalt | Affected
| Fixed in– |
AI-suggested
Organizations should immediately implement strict controls around the handling of LI files, including disabling automatic opening or previewing of such files in Ashlar-Vellum Cobalt until a patch is available. Employ application whitelisting and sandboxing techniques to isolate the Cobalt application and limit the impact of potential exploitation. Enhance email and web filtering to block or flag suspicious LI files or links leading to malicious content. Conduct user awareness training focused on the risks of opening unsolicited or unexpected files. Monitor system and application logs for unusual behavior indicative of exploitation attempts. If possible, restrict Cobalt usage to trusted networks and users, and maintain up-to-date backups of critical data to enable recovery. Engage with Ashlar-Vellum for timely updates and apply patches as soon as they are released.
Description
Ashlar-Vellum Cobalt LI File Parsing Integer 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 LI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25476.