CVE-2023-22407
Junos OS and Junos OS Evolved: An RPD crash can happen due to an MPLS TE tunnel configuration change on a directly connected router
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
An Incomplete Cleanup vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). An rpd crash can occur when an MPLS TE tunnel configuration change occurs on a directly connected router. This issue affects: Juniper Networks Junos OS All versions prior to 18.4R2-S7; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2. Juniper Networks Junos OS Evolved All versions prior to 19.2R3-EVO; 19.3 versions prior to 19.3R3-EVO; 19.4 versions prior to 19.4R3-EVO; 20.1 versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R2-EVO.
Timeline
ID reserved
By juniper
- 16 days later
· 16 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.32% · top 75% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
- CWE-459 Incomplete Cleanup (opens in a new tab)All about CWE-459 and its CVEs
- Denial of Service (DoS)
Affected products
- affected unspecified – < 18.4R2-S7
- affected 19.1 – < 19.1R3-S2
- affected 19.2 – < 19.2R3
- affected 19.3 – < 19.3R3
- affected 19.4 – < 19.4R3
- affected 20.1 – < 20.1R2
- affected 20.2 – < 20.2R2
Juniper Networks · Junos OS Evolved
- affected unspecified – < 19.2R3-EVO
- affected 19.3 – < 19.3R3-EVO
- affected 19.4 – < 19.4R3-EVO
- affected 20.1 – < 20.1R3-EVO
- affected 20.2 – < 20.2R2-EVO
What to do
Solution: The following software releases have been updated to resolve this specific issue: Junos OS: 18.4R2-S7, 19.1R3-S2, 19.2R3, 19.3R3, 19.4R3, 20.1R2, 20.2R2, 20.3R1, and all subsequent releases. Junos OS Evolved: 19.2R3-EVO, 19.3R3-EVO, 19.4R3-EVO, 20.1R3-EVO, 20.2R2-EVO, 20.3R1-EVO, and all subsequent releases.
Workaround: Remove 'protocols rsvp interface <interface> link-protection max-bypasses'.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References (1)
- https://kb.juniper.net/JSA70203 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-22407)Record last updated .