Junos OS and Junos OS Evolved: BGP update with a set of specific attributes causes rpd crash (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.41 % · percentile 35 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Analyzed
Description
A Buffer Over-read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When an affected device receives a BGP update with a set of specific optional transitive attributes over an established peering session, rpd will crash and restart when attempting to advertise the received information to another peer. This issue can only happen if one or both of the BGP peers of the receiving session are non-4-byte-AS capable as determined from the advertised capabilities during BGP session establishment. Junos OS and Junos OS Evolved default behavior is 4-byte-AS capable unless this has been specifically disabled by configuring: [ protocols bgp ... disable-4byte-as ] Established BGP sessions can be checked by executing: show bgp neighbor <IP address> | match "4 byte AS" This issue affects: Junos OS: * all versions before 22.4R3-S8, * 23.2 versions before 23.2R2-S5, * 23.4 versions before 23.4R2-S6, * 24.2 versions before 24.2R2-S2, * 24.4 versions before 24.4R2; Junos OS Evolved: * all versions before 22.4R3-S8-EVO, * 23.2 versions before 23.2R2-S5-EVO, * 23.4 versions before 23.4R2-S6-EVO, * 24.2 versions before 24.2R2-S2-EVO, * 24.4 versions before 24.4R2-EVO.
Weaknesses (CWE)
- CWE-126 — Buffer Over-read
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 4.0 | HIGH 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M | juniper |
| CVSS 4.0 | HIGH 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
European references
- ENISA EUVD · EUVD-2026-2712
- GCVE · GCVE-0-2025-60003
CERT-FR advisories
- CERTFR-2026-AVI-0050 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*< 22.4cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r2:*:*:*:*:*:*- +49 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 0 < 22.4R3-S8 ; affected 23.2 < 23.2R2-S5 ; affected 23.4 < 23.4R2-S6 ; affected 24.2 < 24.2R2-S2 ; affected 24.4 < 24.4R2 |
| Juniper Networks · Junos OS Evolved | affected 0 < 22.4R3-S8-EVO ; affected 23.2 < 23.2R2-S5-EVO ; affected 23.4 < 23.4R2-S6-EVO ; affected 24.2 < 24.2R2-S2-EVO ; affected 24.4 < 24.4R2-EVO |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |