CVE-2023-4781

Name: CVE-2023-4781
Creator: NVD / NIST
Published: 2023-09-05T19:15:49.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.61%

Last modified Jun 23, 2026

CVE-2023-4781 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1873.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1873.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.61%

44.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-122

Affected Software

Vendor	Product	Versions
Vim	Vim	< 9.0.1873
Debian	Debian Linux	10.0
Apple	Macos	< 14.1

References

http://seclists.org/fulldisclosure/2023/Oct/24Mailing List, Third Party Advisory
https://github.com/vim/vim/commit/f6d28fe2c95c678cc3202cc5dc825a3fcc709e93Patch
https://huntr.dev/bounties/c867eb0a-aa8b-4946-a621-510350673883Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00035.htmlMailing List, Third Party Advisory
https://support.apple.com/kb/HT213984Release Notes, Third Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/24Mailing List, Third Party Advisory
https://github.com/vim/vim/commit/f6d28fe2c95c678cc3202cc5dc825a3fcc709e93Patch
https://huntr.dev/bounties/c867eb0a-aa8b-4946-a621-510350673883Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00035.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html
https://support.apple.com/kb/HT213984Release Notes, Third Party Advisory

Timeline

Published: Sep 5, 2023
Last Modified: Jun 23, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4781?

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1873.

How severe is CVE-2023-4781?

CVE-2023-4781 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4781?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-4781?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST