Low severity · published Aug 11, 2026
CVE-2026-73075
Vim: Out-of-bounds Access in Popup Opacity Handling
3.9
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
vim · vim
>= 9.2.0469, < 9.2.0843 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73075
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73075
Patch
https://github.com/vim/vim/security/advisories/GHSA-pmvp-6rcj-98p4
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