CVE-2023-22393

highpriority · track · 30EPSS 0.006 · 50 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.63% (50th) EPSS

CVSS 7.5 · high

Is it mine?

35 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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. This issue only affects systems without import policy configured. This issue affects: Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S2; 21.4 versions prior to 21.4R2-S2, 21.4R3; 22.1 versions prior to 22.1R1-S2, 22.1R2; 22.2 versions prior to 22.2R1-S1, 22.2R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R2-S2-EVO, 21.4R3-EVO; 22.1-EVO versions prior to 22.1R1-S2-EVO, 22.1R2-EVO; 22.2-EVO versions prior to 22.2R1-S1-EVO, 22.2R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 21.1R1. Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · sirt@juniper.net USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-754USprimaryCWE-358USCWE-358USCWE-754US

affected products (35)

Products and version ranges known to be affected.

Juniper JUNOSall versionscert_bundDEcpe:/o:juniper:junos:-
Juniper JUNOS Evolvedall versionscert_bundDEcpe:/o:juniper:junos:evolved
Juniper Networks Junos OS21.1 → 21.1R3-S4enisa_euvdEU
Juniper Networks Junos OS21.2 → 21.2R3-S3enisa_euvdEU
Juniper Networks Junos OS21.3 → 21.3R3-S2enisa_euvdEU
Juniper Networks Junos OS21.4 → 21.4R2-S2, 21.4R3enisa_euvdEU
Juniper Networks Junos OS22.1 → 22.1R1-S2, 22.1R2enisa_euvdEU
Juniper Networks Junos OS22.2 → 22.2R1-S1, 22.2R2enisa_euvdEU
Juniper Networks Junos OS Evolved21.4-EVO → 21.4R2-S2-EVO, 21.4R3-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.1-EVO → 22.1R1-S2-EVO, 22.1R2-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.2-EVO → 22.2R1-S1-EVO, 22.2R2-EVOenisa_euvdEU
Juniper Networks Inc. JunOS21.1 → 21.1R3-S3fstec_bduRU
Juniper Networks Inc. JunOS21.1 → 21.1R3-S2fstec_bduRU
Juniper Networks Inc. JunOS21.1 → 21.1R3-S4fstec_bduRU
Juniper Networks Inc. JunOS21.4 → 21.4R2-S2fstec_bduRU
Juniper Networks Inc. JunOS21.4 → 21.4R3fstec_bduRU
Juniper Networks Inc. JunOS22.1 → 22.1R2fstec_bduRU
Juniper Networks Inc. JunOS22.1 → 22.1R1-S2fstec_bduRU
Juniper Networks Inc. JunOS22.2 → 22.2R2fstec_bduRU
Juniper Networks Inc. JunOS22.2 → 22.2R1-S1fstec_bduRU

showing 20 of 35

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0083Juniper JUNOS und JUNOS Evolved: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2023-01-11csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in Juniper JUNOS und JUNOS Evolved ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2023-01-13modified 2026-06-17

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Related entries.

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references (5)

External citations — patches, advisories, analysis.

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