CVE-2022-2257

Local denial of service via unterminated menu item

Published Jun 30, 2022 · Updated Aug 3, 2024

Out-of-bounds read in Vim before 9.0 allows local users to crash the editor via a crafted menu item containing only a modifier. The str2special parser advanced beyond the menu-item buffer when no character followed the modifier because it did not stop at the terminating NUL byte. Exploitation requires a user to open or source crafted Vim menu input, and the documented consequence is an editor crash rather than a demonstrated remote compromise.

CVSS severity7.8
High
EPSS probability1.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Vim before 9.0 allows local users to crash the editor via a crafted menu item containing only a modifier. The str2special parser advanced beyond the menu-item buffer when no character followed the modifier because it did not stop at the terminating NUL byte. Exploitation requires a user to open or source crafted Vim menu input, and the documented consequence is an editor crash rather than a demonstrated remote compromise.

The record

CVE
CVE-2022-2257
Published
Jun 30, 2022
Updated
Aug 3, 2024
Vendor
Vim
Product
Vim
Classifications
CWE-125, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=unspecified <9.0

Published CVSS scores

7.8huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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