// For flags

CVE-2025-22134

heap-buffer-overflow with visual mode in Vim < 9.1.1003

Severity Score

4.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

When switching to other buffers using the :all command and visual mode still being active, this may cause a heap-buffer overflow, because Vim does not properly end visual mode and therefore may try to access beyond the end of a line in a buffer. In Patch 9.1.1003 Vim will correctly reset the visual mode before opening other windows and buffers and therefore fix this bug. In addition it does verify that it won't try to access a position if the position is greater than the corresponding buffer line. Impact is medium since the user must have switched on visual mode when executing the :all ex command. The Vim project would like to thank github user gandalf4a for reporting this issue. The issue has been fixed as of Vim patch v9.1.1003

This update for vim fixes the following issues. Possible out-of-bounds read when performing a search command. Heap buffer overflow due to incorrect flushing of the typeahead buffer. Heap buffer overflow when cursor position is invalid. Heap buffer overflow when switching to other buffers using the :all command with active visual mode. NULL pointer dereference may lead to segmentation fault when in silent Ex mode. Memory corruption when manipulating the --log argument.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-12-30 CVE Reserved
  • 2025-01-13 CVE Published
  • 2025-03-14 CVE Updated
  • 2025-08-09 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Vim
Search vendor "Vim"
 Vim
Search vendor "Vim" for product "Vim"
 < 9.1.1003
Search vendor "Vim" for product "Vim" and version " < 9.1.1003"
en
Affected