RHSA-2026:6729 - Security Advisory

Topic

An update for vim is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Vim (Vi IMproved) is an updated and improved version of the vi editor.

Security Fix(es):

• vim: Vim: Arbitrary code execution via 'helpfile' option processing (CVE-2026-25749)
• vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin (CVE-2026-28417)
• vim: Vim: Denial of service and information disclosure via crafted swap file (CVE-2026-28421)
• vim: Vim: Arbitrary code execution via command injection in glob() function (CVE-2026-33412)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64

Fixes

• BZ - 2437843 - CVE-2026-25749 vim: Vim: Arbitrary code execution via 'helpfile' option processing
• BZ - 2443455 - CVE-2026-28417 vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin
• BZ - 2443474 - CVE-2026-28421 vim: Vim: Denial of service and information disclosure via crafted swap file
• BZ - 2450907 - CVE-2026-33412 vim: Vim: Arbitrary code execution via command injection in glob() function

CVEs

• CVE-2026-25749
• CVE-2026-28417
• CVE-2026-28421
• CVE-2026-33412

References

• https://access.redhat.com/security/updates/classification/#important