CVE-2022-4293Public exploit

Editor crash via minimum-integer division overflow

Published Dec 5, 2022 · Updated Apr 14, 2025

Denial of service in Vim before 9.0.0804 allows local users to crash the editor by evaluating a crafted division expression. The num_divide() function in src/eval.c passes VARNUM_MIN divided by -1 to the native division operator, producing an unrepresentable result and a floating-point exception. Triggering the condition requires Vim to evaluate the expression, and the consequence is termination of the affected editor process.

CVSS severity5.5
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Vim before 9.0.0804 allows local users to crash the editor by evaluating a crafted division expression. The num_divide() function in src/eval.c passes VARNUM_MIN divided by -1 to the native division operator, producing an unrepresentable result and a floating-point exception. Triggering the condition requires Vim to evaluate the expression, and the consequence is termination of the affected editor process.

The record

CVE
CVE-2022-4293
Published
Dec 5, 2022
Updated
Apr 14, 2025
Vendor
Vim
Product
Vim
Classifications
CWE-697, CWE-1077
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 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 <9.0.0804

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=unspecified <9.0.0804

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.8huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/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-697Incorrect Comparison
CWE-1077Floating Point Comparison with Incorrect Operator

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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