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VulnerabilityPublished

CVE-2025-8005: Ashlar-Vellum Cobalt · Type Confusion

Affects Ashlar-Vellum CobaltSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.0 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% 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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 26 Oct 2026.

What to do

AI-suggested

  1. Immediate mitigation should focus on user awareness and training to recognize and avoid opening untrusted XE files or visiting suspicious web pages.
  2. Implement strict email and web filtering to block or quarantine potentially malicious attachments or links that could deliver crafted XE files.
  3. Restrict usage of Ashlar-Vellum Cobalt 12 SP1 to trusted networks and users, minimizing exposure to untrusted sources.
  4. Employ application whitelisting and sandboxing techniques to limit the execution context of Cobalt and contain potential exploitation.
  5. Monitor system and application logs for unusual behavior indicative of exploitation attempts.
  6. Coordinate with Ashlar-Vellum for timely patch releases and apply updates as soon as they become available.
  7. Consider disabling or restricting the handling of XE files if feasible until a patch is released.
  8. Use endpoint detection and response (EDR) solutions to detect and respond to suspicious activities related to this vulnerability. These measures go beyond generic advice by focusing on controlling the attack vector (XE files), user interaction, and containment within the operational environment.

Description

Ashlar-Vellum Cobalt XE File Parsing Type Confusion 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 validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26237.

References

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