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CVE-2026-25749

MEDIUM 6.6 ALL-YEARS

Published 2026-02-06 · Last modified 2026-02-09 · GitHub_M · NVD: Analyzed

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.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 18th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

6.6CVSS 3.1 · MEDIUM · CNA

  • ConfidentialityNone
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ⚠Access: Requires local access to the host
  • ⚠Privileges: Requires a low-privilege account
  • ⚠User interaction: A user must take an action (click / open a file)
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Vim Neovim

Products Vim Neovim

Weakness (CWE)

  • CWE-122: : Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

References and research data (JSON)

Vendor product assessments

Showing 32 of 819 vendor product statements; 787 omitted. Read the full vendor advisory.

  • vim-2:7.4.629-8.el7_9.1.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_9.1?arch=src&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11-2:9.1.083-5.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_0.2?arch=x86_64&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11-debuginfo-2:8.0.1763-13.el8_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v. 8.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2.1?arch=x86_64&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common-debuginfo-2:8.0.1763-19.el8_6.5.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.6) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_6.5?arch=x86_64&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common-debuginfo-2:8.0.1763-20.el8_8.1.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_8.1?arch=x86_64&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common-2:8.2.2637-20.el9_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2.1?arch=x86_64&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-enhanced-debuginfo-2:8.2.2637-20.el9_4.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4.2?arch=ppc64le&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11-debuginfo-2:9.1.083-5.el10_0.2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_0.2?arch=s390x&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-2:8.0.1763-15.el8_4.1.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4.1?arch=src&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11-debuginfo-2:8.0.1763-20.el8_8.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_8.1?arch=ppc64le&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11-debuginfo-2:8.2.2637-20.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2.1?arch=ppc64le&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-minimal-debuginfo-2:8.2.2637-20.el9_4.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4.2?arch=aarch64&epoch=2

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • registry.redhat.io/rhui5/rhua-rhel9@sha256:7eae5b16539484129c6ce169b41a3e1da7d7dd1296d2677acf7e9c3d1bce00ed_amd64 as a component of Red Hat Update Infrastructure 5 · fixed

    Vendor assessment for this product only.

    pkg:oci/rhua-rhel9@sha256%3A7eae5b16539484129c6ce169b41a3e1da7d7dd1296d2677acf7e9c3d1bce00ed?arch=amd64&repository_url=registry.redhat.io/rhui5&tag=1776868842

    • vendor fix: The container images provided by this release, apart from the installer, should be deployed using rhui-installer utility. See the official documentation for more details. Vendor guidance
    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11 as a component of Red Hat Enterprise Linux 6 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/vim-X11

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • no fix planned: Out of support scope
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common as a component of Red Hat Enterprise Linux 6 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/vim-common

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • no fix planned: Out of support scope
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-enhanced as a component of Red Hat Enterprise Linux 6 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/vim-enhanced

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • no fix planned: Out of support scope
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-filesystem as a component of Red Hat Enterprise Linux 6 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/vim-filesystem

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • no fix planned: Out of support scope
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-minimal as a component of Red Hat Enterprise Linux 6 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/vim-minimal

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • no fix planned: Out of support scope
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim.src as a component of Red Hat Enterprise Linux 6 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/vim?arch=src

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • no fix planned: Out of support scope
    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-X11-debuginfo-2:9.1.083-6.el10_1.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_1.1?arch=aarch64&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-debugsource-2:9.1.083-6.el10_1.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_1.1?arch=s390x&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • xxd-2:9.1.083-6.el10_1.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_1.1?arch=x86_64&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common-debuginfo-2:8.0.1763-22.el8_10.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_10?arch=ppc64le&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-enhanced-debuginfo-2:8.0.1763-22.el8_10.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_10?arch=s390x&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common-2:8.2.2637-23.el9_7.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_7.1?arch=x86_64&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-enhanced-debuginfo-2:8.2.2637-23.el9_7.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_7.1?arch=ppc64le&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-debuginfo-2:9.1.083-6.el10_1.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_1.1?arch=ppc64le&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-minimal-debuginfo-2:9.1.083-6.el10_1.1.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_1.1?arch=s390x&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-common-debuginfo-2:8.0.1763-22.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_10?arch=x86_64&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-minimal-debuginfo-2:8.0.1763-22.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_10?arch=ppc64le&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-debuginfo-2:8.2.2637-23.el9_7.1.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_7.1?arch=s390x&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00
  • vim-minimal-debuginfo-2:8.2.2637-23.el9_7.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_7.1?arch=x86_64&epoch=2

    Red Hat · CVE-2026-25749 · Updated 2026-10-16T11:09:30+00:00

Known Affected Software Configurations

VendorProductVersion range
NeovimNeovim≤ 0.11.6
VimVim< 9.1.2132

All CVSS metrics

  • MEDIUM 6.6 v3.1 · CNA Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
  • MEDIUM 6.6 v3.1 · NVD Secondary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

References

Exploit-tagged references (not proof of a PoC)

Patches & mitigations

Advisories

Technical & other

Sources: NVD · CVE.org · All sources and attribution · EPSS