CVE-2022-2175

Editor crash via negative command-line insertion position

Published Jun 23, 2022 · Updated Aug 3, 2024

Buffer over-read in Vim before 8.2.5148 allows local users to crash the editor via a crafted command-line expression. In src/ex_getln.c, cmdline_insert_reg resets new_cmdpos to -1 for expression-register insertion but fails to restore it before later command-line processing. The user must interact with a crafted command-line expression; the documented result is invalid memory access that interrupts the editor process.

CVSS severity7.8
High
EPSS probability1.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer over-read in Vim before 8.2.5148 allows local users to crash the editor via a crafted command-line expression. In src/ex_getln.c, cmdline_insert_reg resets new_cmdpos to -1 for expression-register insertion but fails to restore it before later command-line processing. The user must interact with a crafted command-line expression; the documented result is invalid memory access that interrupts the editor process.

The record

CVE
CVE-2022-2175
Published
Jun 23, 2022
Updated
Aug 3, 2024
Vendor
Vim
Product
Vim
Classifications
CWE-126, CWE-125
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 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 <8.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=unspecified <8.2

Published CVSS scores

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

Weakness, pattern, technique

CWE-126Buffer Over-read
CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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