Junos OS and Junos OS Evolved: An attacker causes rpd crash and denial of service when EVPN is configured (Juniper Networks Junos OS)

CVE-2026-101943
HIGH 8.7

At a glance

Source
NVD
EPSS
EPSS 0.46 % · percentile 40 ()
State
PUBLISHED
Published
Updated
Assigner
juniper
NVD status
Awaiting Analysis

Description

An Improper Input Validation 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 via a crafted BGP EVPN update message.

Weaknesses (CWE)

  • CWE-20 — Improper Input Validation

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper
CVSS 4.0HIGH 8.7CVSS: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/V:C/RE:Mjuniper
CVSS 4.0HIGH 8.7CVSS: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:C/RE:M/U:XNVD · sirt@juniper.net (Secondary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · sirt@juniper.net (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Juniper Networks · Junos OSaffected 0 < 23.2R2-S7.7 ; affected 23.4 < 23.4R2-S8.13 ; affected 24.2 < 24.2R2-S5.5 ; affected 24.4 < 24.4R2-S5 ; affected 25.2 < 25.2R2-S2 ; affected 25.4 < 25.4R1-S3
Juniper Networks · Junos OS Evolvedaffected 0 < 23.2R2-S7.7-EVO ; affected 23.4 < 23.4R2-S8.11-EVO ; affected 24.2 < 24.2R2-S5.6-EVO ; affected 24.4 < 24.4R2-S5-EVO ; affected 25.2 < 25.2R2-S2-EVO ; affected 25.4 < 25.4R1-S3-EVO

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD