CVE-2026-28420

MEDIUM
2026-02-27 [email protected]
4.4
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 04, 2026 - 20:47 vuln.today
Public exploit code
Patch Released
Mar 04, 2026 - 20:47 nvd
Patch available
CVE Published
Feb 27, 2026 - 22:16 nvd
MEDIUM 4.4

Tags

Buffer Overflow Heap Overflow Vim Redhat Suse

Description

Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an out-of-bounds READ exist in Vim's terminal emulator when processing maximum combining characters from Unicode supplementary planes. Version 9.2.0076 fixes the issue.

Analysis

Vim versions prior to 9.2.0076 contain a heap buffer overflow and out-of-bounds read vulnerability in the terminal emulator when handling Unicode combining characters from supplementary planes, allowing a local attacker with user interaction to cause memory corruption and denial of service. The vulnerability requires local access and user interaction to trigger, with no confidentiality impact but potential integrity and availability consequences. …

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Remediation

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

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Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +22
POC: +20

Vendor Status

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CVE-2026-28420 vulnerability details – vuln.today
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