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Advisory severityMediumRed Hat Linux

Medium [CVE-2026-57454] Out-of-bounds Read with Text Properties

This medium-severity Red Hat Linux advisory covers CVE-2026-57454 affecting Red Hat Hardened Images.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-57454 Source published Source updated

VulniPulse record published Record updated

CVE-2026-57454
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

Summary

Vim is an open source, command line text editor. From 9.2.0320 until 9.2.0679, a crafted undo or swap file can store a virtual-text property whose offset and length point outside the line's property data.

When Vim restores or displays such a line it converts the offset into a pointer and reads the virtual text without bounds checking, causing an out-of-bounds read that can crash Vim or disclose adjacent heap memory. This vulnerability is fixed in 9.2.0679.

A local attacker could exploit this vulnerability by providing a specially crafted undo or swap file. When Vim processes this file, an out-of-bounds read occurs, which can lead to the disclosure of sensitive information from memory or cause the application to crash, resulting in a denial of service (DoS).

This vulnerability was introduced in Vim version 9.2.0320. Because Red Hat products do not ship this version, they are unaffected.

Red Hat severity: Moderate. Weakness: CWE-125.

Affected Red Hat products: Red Hat Hardened Images. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4 as not affected.

Red Hat fixing advisory: RHSA-2026:57614.

Is CVE-2026-57454 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-57454 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-57454?

Upgrade to a fixed release named by Red Hat:

  • 9.2.0679
  • vim-main-9.2.967-1.1.hum1
  • RHSA-2026:57614

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 15 days ago·verify at source

Fixed versions
  • 9.2.0679
  • vim-main-9.2.967-1.1.hum1
  • RHSA-2026:57614

Official advisory · high-confidence parse· fetched 15 days ago·verify at source

Mitigation

Upgrade to a fixed release: 9.2.0679, vim-main-9.2.967-1.1.hum1, RHSA-2026:57614. That is the remediation for this advisory.

The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.

Official advisory · high-confidence parse· fetched 15 days ago·verify at source

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