CVE-2024-47814Public exploit

Editor crash via freed buffer reference

Published Oct 7, 2024 · Updated Nov 3, 2025

Use-after-free in Vim before 9.1.0764 allows local users to crash the editor through a crafted BufWinLeave autocommand. Vim can free a buffer structure that a newly split window still references because do_ecmd does not reject a buffer marked as locked for deletion. Exploitation requires a deliberately configured autocommand that reopens the closing buffer and subsequent buffer-unload commands; the bounded result established upstream is an editor crash.

CVSS severity4.7
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Vim before 9.1.0764 allows local users to crash the editor through a crafted BufWinLeave autocommand. Vim can free a buffer structure that a newly split window still references because do_ecmd does not reject a buffer marked as locked for deletion. Exploitation requires a deliberately configured autocommand that reopens the closing buffer and subsequent buffer-unload commands; the bounded result established upstream is an editor crash.

The record

CVE
CVE-2024-47814
Published
Oct 7, 2024
Updated
Nov 3, 2025
Vendor
Vim
Product
Vim
Classifications
CWE-416, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2024CVE 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< v9.1.0764

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Vim · Vimversion=< v9.1.0764

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.9GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1499Endpoint Denial of Service

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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