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CVE-2023-40305

17
FAUCET Score

CVE-2023-40305 is a heap-based buffer overflow vulnerability affecting GNU indent version 2.2.13, specifically within the search_brace function in indent.c, triggered by a crafted file. Rated 5.5 MEDIUM, it requires local access and user interaction (e.g., opening a malicious file), potentially leading to high availability impact but no confidentiality or integrity loss. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.13CPE matchmatch criteria
cpe:2.3:a:gnu:indent:2.2.13:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 41st percentile among its peer group of 5,760 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (2)

microsoftpatch availablevia msrc
Product: azl3 indent 2.2.13-1 on Azure Linux 3.0Fixed in: 2.2.13-1
microsoftpatch availablevia msrc
Product: 18410-17084Fixed in: 2.2.13-1

Vendor Advisories (2)

microsoft2023-Aug/CVE-2023-40305Moderate

GNU indent 2.2.13 has a heap-based buffer overflow in search_brace in indent.c via a crafted file.

Aug 8, 2023
redhatCVE-2023-40305Low

indent: heap-based buffer overflow in search_brace() in indent.c

Aug 2, 2023

References

ftp.gnu.org / gnu/indent
Product
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/3W6SL3NKMH5R4S5PD2O3MTC2UR4SBVHK
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/4MIUH3F63KQJWYR3FLKRZUYYRJOY6FYX
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OB6GB6FUFPV5VJAZIANDG4YNNDW6JNXX
savannah.gnu.org / bugs/index.php
ExploitIssue TrackingVendor Advisory