vim up to 9.2.0076 unvalidated memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in vim up to 9.2.0076. This affects an unknown part. The manipulation of the argument unvalidated leads to memory corruption. This vulnerability is documented as CVE-2026-28421. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in vim up to 9.2.0076 and classified as critical. This issue affects an unknown functionality. The manipulation of the argument unvalidated with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointer blocks within a swap file. Version 9.2.0077 fixes the issue.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-28421 since 02/27/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 300519 (Linux Distros Unpatched Vulnerability : CVE-2026-28421), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.2.0077 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (300519), EUVD (EUVD-2026-9089) and CERT Bund (WID-SEC-2026-0556). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source vim
  • Red Hat OpenShift

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 300519
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-28421

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: vim 9.2.0077
Patch: github.com

Timelineinfo

02/27/2026 CVE reserved
02/28/2026 +1 days Advisory disclosed
02/28/2026 +0 days VulDB entry created
04/16/2026 +47 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-r2gw-2x48-jj5p
Status: Confirmed

CVE: CVE-2026-28421 (🔒)
GCVE (CVE): GCVE-0-2026-28421
GCVE (VulDB): GCVE-100-348251
EUVD: 🔒
CERT Bund: WID-SEC-2026-0556 - vim: Mehrere Schwachstellen

Entryinfo

Created: 02/28/2026 03:01
Updated: 04/16/2026 23:30
Changes: 02/28/2026 03:01 (67), 02/28/2026 14:01 (1), 03/02/2026 11:38 (7), 03/03/2026 22:23 (1), 03/04/2026 12:23 (2), 03/04/2026 22:23 (11), 03/08/2026 21:02 (1), 03/19/2026 03:44 (1), 04/16/2026 23:30 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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