CVE-2025-7988: Ashlar-Vellum Graphite · Out-of-bounds Write
Affects Ashlar-Vellum GraphiteSource 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 11% 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 Graphite | Affected
| Fixed in– |
AI-suggested
Beyond standard patching once available, European organizations should implement strict file handling policies, including disabling automatic opening or previewing of VC6 files in email clients and browsers. Employ advanced endpoint protection capable of detecting anomalous behavior related to memory corruption exploits. Network segmentation should isolate systems running Ashlar-Vellum Graphite to limit lateral movement. User awareness training should emphasize the risks of opening unsolicited files or links, particularly those related to VC6 files. Employ application whitelisting to restrict execution of unauthorized code. Monitoring and logging of file access and process behavior on systems running Graphite can provide early detection of exploitation attempts. If patching is delayed, consider using sandboxing or virtualized environments for handling untrusted VC6 files to contain potential exploitation.
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-25862.