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CVE-2023-5344

22
FAUCET Score

CVE-2023-5344 is a heap-based buffer overflow vulnerability affecting Vim versions prior to 9.0.1969, including specific Fedora Project distributions. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely without user interaction, leading to a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.1969CPE match
cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.5
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 43rd percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: cbl2 vim 9.0.2010-1 on CBL Mariner 2.0Fixed in: 9.0.2010-1
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-Oct/CVE-2023-5344Important

Heap-based Buffer Overflow in vim/vim

Oct 10, 2023
redhatCVE-2023-5344Low

vim: Heap-based Buffer Overflow in trunc_string()

Oct 2, 2023

References

lists.debian.org / debian-lts-announce/2025/03/msg00023.html
seclists.org / fulldisclosure/2023/Dec/10
seclists.org / fulldisclosure/2023/Dec/11
seclists.org / fulldisclosure/2023/Dec/9
github.com / vim/vim/commit/3bd7fa12e146c6051490d048a4acbfba974eeb04
Patch
huntr.dev / bounties/530cb762-899e-48d7-b50e-dad09eb775bf
ExploitPatchThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/4W665GQBN6S6ZDMYWVF4X7KMFI7AQKJL
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/XPT7NMYJRLBPIALGSE24UWTY6F774GZW
lists.fedoraproject.org / archives/list/[email protected]/message/ZOXBUJLJ5VSPN3YXWN7XZA4JDYKNE7GZ
Mailing List
support.apple.com / kb/HT214036
support.apple.com / kb/HT214037
support.apple.com / kb/HT214038