CVE-2022-0392Public exploit

Editor crash via undersized bracketed-paste allocation

Published Jan 28, 2022 · Updated Nov 3, 2025

Heap-based buffer overflow in Vim before 8.2 allows local users to crash the editor by pasting crafted text in Ex mode. The bracketed_paste function in src/edit.c reserves capacity for the pasted bytes but appends a terminating NUL without reserving the extra byte. Exploitation requires user interaction with bracketed paste in Ex mode and causes a one-byte heap write that can crash Vim or corrupt its process memory.

CVSS severity6.1
Medium
EPSS probability1.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Vim before 8.2 allows local users to crash the editor by pasting crafted text in Ex mode. The bracketed_paste function in src/edit.c reserves capacity for the pasted bytes but appends a terminating NUL without reserving the extra byte. Exploitation requires user interaction with bracketed paste in Ex mode and causes a one-byte heap write that can crash Vim or corrupt its process memory.

The record

CVE
CVE-2022-0392
Published
Jan 28, 2022
Updated
Nov 3, 2025
Vendor
Vim
Product
Vim
Classifications
CWE-787, CWE-122, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <8.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=unspecified <8.2

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
6.1huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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