CVE-2023-2610Public exploit

Editor crash via unbounded tilde substitution expansion

Published May 9, 2023 · Updated Jun 23, 2026

Integer overflow in Vim before 9.0.1532 allows attackers to crash the editor via crafted substitute commands that expand tildes. The regtilde function casts substitution lengths to int and repeatedly allocates and copies expanded text without enforcing MAXCOL. Execution requires user interaction with attacker-controlled commands; successful triggering can consume excessive memory and terminate the editing session.

CVSS severity7.8
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Vim before 9.0.1532 allows attackers to crash the editor via crafted substitute commands that expand tildes. The regtilde function casts substitution lengths to int and repeatedly allocates and copies expanded text without enforcing MAXCOL. Execution requires user interaction with attacker-controlled commands; successful triggering can consume excessive memory and terminate the editing session.

The record

CVE
CVE-2023-2610
Published
May 9, 2023
Updated
Jun 23, 2026
Vendor
Vim
Product
Vim
Classifications
CWE-190
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record 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 <9.0.1532

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=unspecified <9.0.1532

Published CVSS scores

7.8huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST 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-190Integer Overflow or Wraparound

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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