CVE-2025-8006: Ashlar-Vellum Cobalt · Out-of-bounds Read
Affects Ashlar-Vellum CobaltSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 12:29 UTC
- 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: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 26 Oct 2026.
What to do
AI-suggested
To mitigate this vulnerability, European organizations should implement the following specific measures: 1) Immediately restrict the opening or processing of XE files from untrusted or unknown sources. 2) Educate users on the risks of opening unsolicited files or clicking on suspicious links, emphasizing the need for caution with XE files. 3) Employ application whitelisting and sandboxing techniques to isolate Ashlar-Vellum Cobalt processes, limiting the impact of potential exploitation. 4) Monitor network and endpoint logs for unusual behavior indicative of exploitation attempts, such as unexpected process launches or memory access violations. 5) Coordinate with Ashlar-Vellum for timely updates or patches and prioritize their deployment once available. 6) Consider deploying endpoint detection and response (EDR) solutions capable of detecting anomalous memory reads or code execution patterns related to this vulnerability. 7) Implement strict file integrity monitoring on directories where XE files are stored or processed to detect unauthorized modifications. These targeted actions go beyond generic advice by focusing on controlling the specific attack vector (XE file parsing) and limiting the execution context of the vulnerable application.
Description
Ashlar-Vellum Cobalt XE File Parsing Out-Of-Bounds Read 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 read past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26238.