Junos OS Evolved: QFX Series: When sFlow collector reachability changes evo-pfemand process can crash (Juniper Networks Junos OS Evolved)
En bref
- Source
- NVD
- EPSS
- EPSS 0.19 % · centile 9 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- juniper
- Statut NVD
- Analyzed
Description
A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service (DoS). When the reachability of an sFlow collector changes, the corresponding next-hop entry is updated. If this update occurs simultaneously with the sFlow thread accessing the next-hop data (which is outside the attackers control), it causes the evo-pfemand process to crash, impacting all traffic forwarding until the automatic process restart has completed. This issue affects Junos OS Evolved on QFX Series: * all 23.2 versions, * 23.4 versions before 23.4R2-S7-EVO, * 24.2 versions before 24.2R2-S5-EVO, * 24.4 versions before 24.4R2-S3-EVO, * 25.2 versions before 25.2R2-EVO.
Faiblesses (CWE)
- CWE-820 — Missing Synchronization
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 4.0 | MEDIUM 6.0 | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M | juniper |
| CVSS 4.0 | MEDIUM 6.0 | CVSS:4.0/AV:A/AC:L/AT:P/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:X/V:X/RE:M/U:X | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-42718
- GCVE · GCVE-0-2026-57029
Avis du CERT-FR
- CERTFR-2026-AVI-0852 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:juniper:junos_os_evolved:23.2:*:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:25.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:25.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:25.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:25.2:r1-s2:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Juniper Networks · Junos OS Evolved | affected 0 < 23.4R2-S7-EVO ; affected 24.2 < 24.2R2-S5-EVO ; affected 24.4 < 24.4R2-S3-EVO ; affected 25.2 < 25.2R2-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 |