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CVE-2023-4781

23
FAUCET Score

CVE-2023-4781 is a high-severity heap-based buffer overflow vulnerability affecting Vim versions prior to 9.0.1873, impacting various Apple and Debian Linux distributions running Vim. This vulnerability has a CVSS score of 7.8, indicating a high potential for impact (confidentiality, integrity, and availability) through a low-complexity attack requiring user interaction. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting a low immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.1873CPE matchmatch criteria
cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
< 14.1CPE matchmatch criteria
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 44th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 18317-16823Fixed in: 9.0.1897-1
microsoftpatch availablevia msrc
Product: cbl2 vim 9.0.1897-1 on CBL Mariner 2.0Fixed in: 9.0.1897-1
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: vim
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: vim

Vendor Advisories (2)

microsoft2023-Sep/CVE-2023-4781Important

Heap-based Buffer Overflow in vim/vim

Sep 12, 2023
redhatCVE-2023-4781Low

vim: heap-buffer-overflow in function vim_regsub_both in vim/vim

Sep 5, 2023

References

lists.debian.org / debian-lts-announce/2025/03/msg00023.html
seclists.org / fulldisclosure/2023/Oct/24
Mailing ListThird Party Advisory
github.com / vim/vim/commit/f6d28fe2c95c678cc3202cc5dc825a3fcc709e93
Patch
huntr.dev / bounties/c867eb0a-aa8b-4946-a621-510350673883
ExploitIssue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2023/09/msg00035.html
Mailing ListThird Party Advisory
support.apple.com / kb/HT213984
Release NotesThird Party Advisory