CVE-2026-51401

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

Overview

State: PUBLISHED
Assigner (CNA): mitre
CVSS severity: —
CVSS score: —
CVSS vector: —
Effective score: 7.7 / 10 HIGH source: NVD
CWE(s): —
Reserved: 2026-06-07
Published: 2026-08-04 00:00 UTC
Last updated: 2026-08-05 19:14 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/51xxx/CVE-2026-51401.json
Linked Threat: CVE-2026-51401 — CVE-2026-51401

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-08-04 21:16:36 UTC
NVD last modified: 2026-08-05 20:17:09 UTC
NVD CVSS v3.1: 7.7 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability subscore: 2.5 / 10
Impact subscore: 5.2 / 10
EPSS score: 0.0016 (probability of exploitation in next 30 days)
EPSS percentile: 5.51% vs all CVEs — higher = more likely to be exploited, as of 2026-08-05

NVD-assigned CWE(s): CWE-94 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-52970
Assigner: mitre
Published: Aug 4, 2026, 12:00:00 AM
Updated: Aug 5, 2026, 7:14:26 PM
EUVD base score (CVSS 3.1): 7.7 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EUVD-reported EPSS: 0.0000
Vendors: n/a
Products: n/a (n/a)
Aliases: GHSA-wv45-rxv4-pf47

ENISA 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

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
n/a	n/a	`n/a` (affected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://gist.github.com/jiejiaodedengdai/ff5d34a523167e09b7d8330cc9f5d4e5#file-vim-os_vms-cves-md cve@mitre.org
https://github.com/vim/vim cve@mitre.org
https://github.com/vim/vim/blob/master/src/os_vms.c cve@mitre.org

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-51400 - Vulnerability Details - OpenCVE

web:app.opencve.io

Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Apply the latest Vim release (9.2.0390 or newer) that includes input validation for filenames in vms_fixfilename (); this patch addresses improper input validation (CWE‑20) and eliminates the underlying memory leak (CWE‑401).

2026-08-06 19:53 UTC
CVE-2026-51401 - Vim Arbitrary Code Execution

web:cvefeed.io

The following list is the news that have been mention CVE-2026-51401 vulnerability anywhere in the article. Results are limited to the first 20 news articles due to potential performance issues. The following table lists the changes that have been made to the CVE-2026-51401 vulnerability over time.

2026-08-06 19:53 UTC
CVE-2026-51401 - Exploits & Severity - Feedly

web:feedly.com

CVE ID : CVE-2026-51401 Published : Aug. 4, 2026 , 9:16 p.m. 24 minutes ago 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 Severity: 0.0 NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

2026-08-06 19:53 UTC
Security Advisory for CVE-2026-51400 & CVE-2026-51401 (Vim os_vms.c ...

web:gist.github.com

CVE - 2026 -51400 CWE: CWE-401 Missing Release of Memory after Effective Lifetime Affected Version: Vim ≤ v9.2.0389 Vulnerability Type: Memory Leak Description: A static heap buffer allocated in vms_fixfilename () is never released during the lifetime of the Vim process. Repeated invocations of this function in long-running editing sessions or automated file processing tasks cause continuous ...

2026-08-06 19:53 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Access Microsoft Security Response Center's guide to address vulnerabilities, manage security risks, and keep your systems protected with the latest updates.

2026-08-06 19:53 UTC
NVD - cve-2026-51401

web:nvd.nist.gov

Quick Info CVE Dictionary Entry: CVE-2026-51401 NVD Published Date: 08/04/ 2026 NVD Last Modified: 08/04/ 2026 Source: MITRE

2026-08-06 19:53 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-08-06 19:53 UTC
CVE-2026-51401 - vulnerability database | Vulners.com

web:vulners.com

CVE-2026-51401 concerns Vim up to v9.2.0389 where a local attacker can execute arbitrary code via the vms_fixfilename() function in vim/src/os_vms.c. Red Hat notes the vulnerable path is confined to Vim's OpenVMS platform support and is not includ...

2026-08-06 19:53 UTC
Microsoft just released its biggest Patch Tuesday ever

web:www.techradar.com

Microsoft shipped three times more fixes than usual in its latest Patch Tuesday update.

2026-08-06 19:53 UTC
Patch Tuesday August 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's August 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-08-06 19:53 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-51401.json.

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              "confidentialityImpact": "HIGH",
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