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CVE-2025-7986VulnerabilityPublished

CVE-2025-7986: Ashlar-Vellum Graphite · Out-of-bounds Write

Affects Ashlar-Vellum GraphiteSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 25 Oct 2026, 19:02 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 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Ashlar-Vellum GraphiteAffected
  • =13.0
Fixed in–

AI-suggested

1. Immediately restrict the use of Ashlar-Vellum Graphite 13.0 to trusted sources and environments until a vendor patch is available. 2. Implement strict file handling policies: block or quarantine VC6 files from untrusted or external sources at email gateways and endpoint security solutions. 3. Educate users about the risks of opening unsolicited or suspicious VC6 files and visiting untrusted websites. 4. Employ application whitelisting and sandboxing techniques to limit the execution context of Ashlar-Vellum Graphite, reducing the impact of potential exploitation. 5. Monitor network and endpoint logs for unusual behavior related to Ashlar-Vellum Graphite processes, such as unexpected memory access or spawning of child processes. 6. Coordinate with Ashlar-Vellum for timely patch deployment once available and test updates in controlled environments before wide rollout. 7. Consider network segmentation for systems running this software to limit lateral movement in case of compromise. 8. Use endpoint detection and response (EDR) tools to detect exploitation attempts and respond rapidly.

Description

Ashlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. 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 VC6 files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25755.

References

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