Vulnerability · Published Aug 4, 2026 · Assigned by mitre
CVE-2026-51400
High 8.4
In plain English
A high-severity memory leak in the vim package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)8.4High
Exploit odds (30 days)0.2%top 92.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue in Vim Project v9.2.0389 and earlier allows a local attacker to execute arbitrary code via the vms_fixfilename() function within file vim/src/os_vms.c
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | vim | no fix listed | UBUNTU-CVE-2026-51400 |
| Ubuntu:24.04:LTS | vim | no fix listed | UBUNTU-CVE-2026-51400 |
| Ubuntu:26.04:LTS | vim | no fix listed | UBUNTU-CVE-2026-51400 |
| Ubuntu:26.10 | vim | no fix listed | UBUNTU-CVE-2026-51400 |
Affected products (as reported)
Weakness: CWE-401 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H