CVE-2026-73075

Vim: Out-of-bounds Access in Popup Opacity Handling

CVE-2026-73075 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2026-73075, released August 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

3.9

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0009

0th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
vim · Debian 14	2:9.2.0858-1	DEBIAN-CVE-2026-73075	Aug 13, 2026
vim · opensuse-leap 16.0	9.2.0957-160000.1.1	OPENSUSE-SU-2026:21671-1	Aug 28, 2026
vim · sles 15.6	9.2.0957-150500.20.64.1	SUSE-SU-2026:3680-1	Aug 21, 2026
vim · sles 15.7	9.2.0957-150500.20.64.1	SUSE-SU-2026:3680-1	Aug 21, 2026
vim · sles 16.0	9.2.0957-160000.1.1	SUSE-SU-2026:23552-1	Aug 28, 2026
vim-common · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-data · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-debuginfo · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-debugsource · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-default-editor · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-enhanced · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-enhanced-debuginfo · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-filesystem · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-minimal · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
vim-minimal-debuginfo · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
xxd · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026
xxd-debuginfo · amzn 2023	2:9.2.920-1.amzn2023.0.1	ALAS2023-2026-2108	Aug 31, 2026

Details

Published
August 11, 2026
Weakness
Buffer Underwrite ('Buffer Underflow')
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73075

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