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OpenAdvisories
Medium · 6.6 CVE-2026-25749 EUVD-2026-6930

Heap Overflow in Vim

Published Feb 6, 2026 · Updated Feb 9, 2026 · Assigned by GitHub_M

Description

Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been patched in version 9.1.2132.

Affected products

VendorProductAffectedFixed
vim vim < 9.1.2132 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 vim 2:9.1.2141-1 —
Debian 13 vim 2:9.1.1230-2+deb13u1 —
Debian 12 vim No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 25.10 vim 2:9.1.0967-1ubuntu6.1 —
Ubuntu 24.04 LTS vim 2:9.1.0016-1ubuntu7.10 —
Ubuntu 22.04 LTS vim 2:8.2.3995-1ubuntu2.26 —
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS vim 2:8.1.2269-1ubuntu5.32+esm2 —
Ubuntu Pro 18.04 LTS vim 2:8.0.1453-1ubuntu1.13+esm14 —
Ubuntu Pro 16.04 LTS vim 2:7.4.1689-3ubuntu1.5+esm29 —
Ubuntu Pro 14.04 LTS vim 2:7.4.052-1ubuntu3.1+esm23 —
ReleasePackageFixed inAdvisory
RHEL 10 vim +3 2:9.1.083-6.el10_1.1 RHSA-2026:4715
RHEL 9 vim +3 2:8.2.2637-23.el9_7.1 RHSA-2026:5602
RHEL 8 vim +3 2:8.0.1763-22.el8_10 RHSA-2026:4442
Show 14 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS vim +7 2:9.1.083-5.el10_0.2 RHSA-2026:6502
RHEL 9.6 EUS vim +5 2:8.2.2637-22.el9_6.2 RHSA-2026:6539
RHEL 9.4 EUS vim +5 2:8.2.2637-20.el9_4.2 RHSA-2026:6540
RHEL 9.2 E4S vim +5 2:8.2.2637-20.el9_2.1 RHSA-2026:6620
RHEL 9.0 E4S vim +5 2:8.2.2637-16.el9_0.4 RHSA-2026:6619
RHEL 8.8 TUS vim +5 2:8.0.1763-20.el8_8.1 RHSA-2026:6736
RHEL 8.8 E4S vim +5 2:8.0.1763-20.el8_8.1 RHSA-2026:6736
RHEL 8.6 TUS vim +5 2:8.0.1763-19.el8_6.5 RHSA-2026:6731
RHEL 8.6 E4S vim +5 2:8.0.1763-19.el8_6.5 RHSA-2026:6731
RHEL 8.6 AUS vim +5 2:8.0.1763-19.el8_6.5 RHSA-2026:6731
RHEL 8.4 EUS Long Life vim +5 2:8.0.1763-15.el8_4.1 RHSA-2026:6729
RHEL 8.4 AUS vim +5 2:8.0.1763-15.el8_4.1 RHSA-2026:6729
RHEL 8.2 AUS vim +5 2:8.0.1763-13.el8_2.1 RHSA-2026:6730
RHEL 7 ELS vim +5 2:7.4.629-8.el7_9.1 RHSA-2026:6617

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 vim-data +1 2:9.1.083-6.el10_1.1 ALSA-2026:4715
AlmaLinux 9 vim-X11 +4 2:8.2.2637-23.el9_7.1 ALSA-2026:5602
AlmaLinux 8 vim-X11 +4 2:8.0.1763-22.el8_10 ALSA-2026:4442

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 vim 2:9.1.083-6.el10_1.1 RLSA-2026:4715
Rocky Linux 9 vim 2:8.2.2637-23.el9_7.1 RLSA-2026:5602
Rocky Linux 8 vim 2:8.0.1763-22.el8_10 RLSA-2026:4442
ReleasePackageFixed inAdvisory
Alpine v3.24 vim 9.1.2132-r0 —
Alpine v3.23 vim 9.1.2132-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 xxd +6 2:9.2.240-1.amzn2023.0.2 ALAS2023-2026-1584

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 vim 9.2.0088-1 —
Azure Linux 2 (CBL-Mariner) vim 9.2.0088-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 xxd +6 2:9.1.083-6.0.1.el10_1.1 ELSA-2026-4715
Oracle Linux 9 vim-X11 +4 2:8.2.2637-23.0.1.el9_7.1 ELSA-2026-5602
Oracle Linux 8 vim-X11 +4 2:8.0.1763-22.0.1.el8_10 ELSA-2026-4442
Oracle Linux 7 vim-X11 +4 2:7.4.629-8.0.3.el7_9 ELSA-2026-6617

Advisories 27

References