Vim up to 9.2.0842 src/popupwin.c popup_mark_opacity_zindex out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k1.20+

Summaryinfo

A vulnerability identified as problematic has been detected in Vim up to 9.2.0842. This affects the function popup_mark_opacity_zindex of the file src/popupwin.c. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2026-73075. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Vim up to 9.2.0842. It has been rated as problematic. This issue affects the function popup_mark_opacity_zindex of the file src/popupwin.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-73075 since 08/10/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 9.2.0843 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Vim 9.2.0843

Timelineinfo

08/10/2026 CVE reserved
08/11/2026 +1 days Advisory disclosed
08/11/2026 +0 days VulDB entry created
08/11/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-73075 (🔒)
GCVE (CVE): GCVE-0-2026-73075
GCVE (VulDB): GCVE-100-388187

Entryinfo

Created: 08/11/2026 17:52
Changes: 08/11/2026 17:52 (56)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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