CVE record · CVE-2025-52949

Junos OS and Junos OS Evolved: In an EVPN environment, receipt of specifically malformed BGP update causes RPD crash

CVSS 7.1 HighEPSS 0.0032 · 24th percentile

Published by the CVE Program (CNA: juniper) at 11 Jul 2025, 14:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Juniper Networks	Junos OS	affected before 21.4R3-S11 semver affected 22.2 to before 22.2R3-S7 semver affected 22.4 to before 22.4R3-S7 semver affected 23.2 to before 23.2R2-S4 semver affected 23.4 to before 23.4R2-S5 semver affected 24.2 to before 24.2R2-S1 semver affected 24.4 to before 24.4R1-S3, 24.4R2 semver Other versions: unaffected
Juniper Networks	Junos OS Evolved	affected before 22.2R3-S7-EVO semver affected 22.4-EVO to before 22.4R3-S7-EVO semver affected 23.2-EVO to before 23.2R2-S4-EVO semver affected 23.4-EVO to before 23.4R2-S5-EVO semver affected 24.2-EVO to before 24.2R2-S1-EVO semver affected 24.4-EVO to before 24.4R1-S3-EVO, 24.4R2-EVO semver Other versions: unaffected

Identifiers: CVE-2025-52949
CNA: juniper
Weakness (CWE): CWE-130
Tags: Juniper Networks Junos OS
Juniper Networks Junos OS Evolved
CWE-130
Published: 11 Jul 2025
Updated: 11 Jul 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.5	Medium	3.1	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (juniper)
7.1	High	4.0	CVSS:4.0/AV:A/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:M/U:Amber	CNA (juniper)Used for this record

CISA KEV Not listed.
EPSS 0.0032, the 24th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 11 Jul 2025. New records show when each source confirmed them.

Sources

References from the CNA

supportportal.juniper.net/JSA100053 vendor-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.