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Vim CVE-2026-28419

MEDIUM
Buffer Underwrite ('Buffer Underflow') (CWE-124)
2026-02-27 security-advisories@github.com
5.3
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
Patch released
Mar 04, 2026 - 21:22 nvd
Patch available
CVE Published
Feb 27, 2026 - 22:16 nvd
MEDIUM 5.3

DescriptionNVD

Vim is an open source, command line text editor. Prior to version 9.2.0075, a heap-based buffer underflow exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file where a delimiter appears at the start of a line, Vim attempts to read memory immediately preceding the allocated buffer. Version 9.2.0075 fixes the issue.

AnalysisAI

Vim versions prior to 9.2.0075 contain a heap buffer underflow in the tags file parser that triggers when processing malformed tag files with delimiters at line starts, potentially allowing local attackers with user interaction to read out-of-bounds memory and cause information disclosure or crashes. The vulnerability requires local file system access and user interaction to exploit, with a CVSS score of 5.3 indicating medium severity. …

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RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

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Vendor StatusVendor

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CVE-2026-28419 vulnerability details – vuln.today

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