Description
Vim is an open source, command line text editor. From 9.2.0469 until 9.2.0843, popup_mark_opacity_zindex() in src/popupwin.c can use a negative w_winrow for a text-property-anchored popup with clipwindow and opacity, indexing before the screen array instead of accounting for w_popup_topoff and causing an out-of-bounds read and conditional write. This issue is fixed in version 9.2.0843.
Published: 2026-08-11
Score: 4.6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Tue, 11 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
Description Vim is an open source, command line text editor. From 9.2.0469 until 9.2.0843, popup_mark_opacity_zindex() in src/popupwin.c can use a negative w_winrow for a text-property-anchored popup with clipwindow and opacity, indexing before the screen array instead of accounting for w_popup_topoff and causing an out-of-bounds read and conditional write. This issue is fixed in version 9.2.0843.
Title Vim: Out-of-bounds Access in Popup Opacity Handling
Weaknesses CWE-124
CWE-125
References
Metrics cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-11T15:36:33.066Z

Reserved: 2026-08-10T19:37:41.444Z

Link: CVE-2026-73075

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-11T16:17:38.840

Modified: 2026-08-11T16:17:38.840

Link: CVE-2026-73075

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-124

    Buffer Underwrite ('Buffer Underflow')

  • CWE-125

    Out-of-bounds Read