CVE-2023-41360Network attack vector

Memory disclosure and bgpd crash via ORF over-read

Published Aug 29, 2023 · Updated Oct 15, 2024

Out-of-bounds read in FRRouting FRR 8.4.x, 8.5.0 through 8.5.2, and 9.0.0 allows remote attackers to expose memory or crash bgpd. The BGP route-refresh parser in bgpd/bgp_packet.c dereferences the first ORF-header byte without confirming that its stream pointer remains before the buffer end. Network reachability to bgpd and an established BGP session are required; a truncated ORF request can expose process memory or interrupt routing.

CVSS severity9.1
Critical
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in FRRouting FRR 8.4.x, 8.5.0 through 8.5.2, and 9.0.0 allows remote attackers to expose memory or crash bgpd. The BGP route-refresh parser in bgpd/bgp_packet.c dereferences the first ORF-header byte without confirming that its stream pointer remains before the buffer end. Network reachability to bgpd and an established BGP session are required; a truncated ORF request can expose process memory or interrupt routing.

The record

CVE
CVE-2023-41360
Published
Aug 29, 2023
Updated
Oct 15, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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