SARA / Free Tools / CVE / CVE-2023-22393

CVE-2023-22393 — An Improper Check for Unusual or Exceptional Conditions vulnerability in BGP rou

An Improper Check for Unusual or Exceptional Conditions vulnerability in BGP route processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to cause Routing Protocol Daemon (RPD) crash by sending a BGP route with invalid next-hop resulting in a Denial of Se

CVSS
7.5 HIGH
EPSS
0.32% (top 45.00%)
CWE
CWE-358, CWE-754
Published
2023-01-12T00:00:00.000Z
Last modified
2025-04-07T15:43:29.583Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

An Improper Check for Unusual or Exceptional Conditions vulnerability in BGP route processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to cause Routing Protocol Daemon (RPD) crash by sending a BGP route with invalid next-hop resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition…

02Affected products

VendorProductVersions
Juniper NetworksJunos OSunspecified, 21.1, 21.2, 21.3, 21.4, 22.1, 22.2
Juniper NetworksJunos OS Evolvedunspecified, 21.4-EVO, 22.1-EVO, 22.2-EVO

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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