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CVE-2023-41359

26
FAUCET Score

CVE-2023-41359 describes an out-of-bounds read vulnerability in FRRouting (FRR) versions up to 9.0, specifically within the bgp_attr_aigp_valid function due to insufficient bounds checking during AIGP validation. This critical vulnerability (CVSS 9.1) can be exploited remotely with low attack complexity, potentially leading to high confidentiality and availability impacts. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.0CPE matchmatch criteria
cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.96%
Probability of exploitation in next 30 days
EPSS Percentile
57.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0096 is in the 43rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 (6)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 18323-16823Fixed in: 8.5.3-2
microsoftpatch availablevia msrc
Product: cbl2 frr 8.5.3-2 on CBL Mariner 2.0Fixed in: 8.5.3-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 8.5.3-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 8.5.3-2
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: frr-0:8.5.3-4.el9
View patch

Vendor Advisories (3)

microsoft2023-Sep/CVE-2023-41359

CVE-2023-41359

Sep 12, 2023
redhatCVE-2023-41359Moderate

frr: out of bounds read in bgp_attr_aigp_valid

Aug 29, 2023
microsoft2023-Aug/CVE-2023-41359Critical

An issue was discovered in FRRouting FRR through 9.0. There is an out-of-bounds read in bgp_attr_aigp_valid in bgpd/bgp_attr.c because there is no check for the availability of two bytes during AIGP validation.

Aug 8, 2023

References

github.com / FRRouting/frr/pull/14232
PatchVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO
Mailing List
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE
Mailing List
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4
Mailing List