CVE-2026-52859

Published: Giu 11, 2026 Last Modified: Giu 15, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 8,2
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: high

Description

AI Translation Available

Vim is an open source, command line text editor. Prior to version 9.2.0565, the update_snapshot() function in src/terminal.c copies the visible terminal screen into the scrollback buffer when a snapshot is taken. For each screen cell it walks the cell's chars[] array with no upper bound, stopping only when it encounters a NUL terminator. When a cell legitimately fills all VTERM_MAX_CHARS_PER_CELL (6) slots — a base character plus five combining marks — the bundled libvterm returns the array without a terminating NUL, so the loop reads past the fixed six-element array and appends the out-of-bounds values to a buffer reserved for only six characters. A program whose output is rendered inside a :terminal window can trigger this with a short byte sequence and no Vim scripting, leading to a crash. This issue has been patched in version 9.2.0565.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 4 Days)

125

Out-of-bounds Read

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Availability Other
Potential Impacts:
Read Memory Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Varies By Context
Applicable Platforms
Languages: Memory-Unsafe, C, C++
Technologies: ICS/OT
View CWE Details
Application

Vim by Vim

Product Information
Vendor Vim
Product Vim
Version Range Affected
To 9.2.0565 (exclusive)
cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/vim/vim/commit/63680c6d3d52477817b49cd1a…
https://github.com/vim/vim/commit/63680c6d3d52477817b49cd1a66e7aabe8a7aa19
https://github.com/vim/vim/releases/tag/v9.2.0565
https://github.com/vim/vim/releases/tag/v9.2.0565
https://github.com/vim/vim/security/advisories/GHSA-47gw-8g…
https://github.com/vim/vim/security/advisories/GHSA-47gw-8gc3-mgcm