7.1

CVE-2025-52964: juniper networks junos os Reachable Assertion

CVSS: 7.1v4.0HighAnalyzed
Published 11-07-2025Last modified 14-07-2025
Open JSON

Vulnerability summary

CVE-2025-52964 is a high (CVSS 7.1) Reachable Assertion vulnerability in juniper networks junos os. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.6% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v4.0 (CVE.org)
EPSS score
0.30%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-07-2025
    PublishedVulnerability first disclosed.
  2. 14-07-2025
    Last modifiedVulnerability information updated.

Description

A Reachable Assertion 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 the device receives a specific BGP UPDATE packet, the rpd crashes and restarts. Continuous receipt of this specific packet will cause a sustained DoS condition. For the issue to occur, BGP multipath with "pause-computation-during-churn" must be configured on the device, and the attacker must send the paths via a BGP UPDATE from a established BGP peer. This issue affects: Junos OS: * All versions before 21.4R3-S7, * from 22.3 before 22.3R3-S3, * from 22.4 before 22.4R3-S5, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. Junos OS Evolved: * All versions before 21.4R3-S7-EVO, * from 22.3 before 22.3R3-S3-EVO, * from 22.4 before 22.4R3-S5-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R2-EVO.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

+0.04 pp

From 0.26% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Juniper2 products
  • junos< 21.4 | 21.4 | 21.4:r1 | 21.4:r1-s1 | 21.4:r1-s2 | 21.4:r2 | 21.4:r2-s1 | 21.4:r2-s2 | 21.4:r3 | 21.4:r3-s1 | 21.4:r3-s2 | 21.4:r3-s3 | 21.4:r3-s4 | 21.4:r3-s5 | 21.4:r3-s6 | 22.3 | 22.3:r1 | 22.3:r1-s1 | 22.3:r1-s2 | 22.3:r2 | 22.3:r2-s1 | 22.3:r2-s2 | 22.3:r3 | 22.3:r3-s1 | 22.3:r3-s2 | 22.4 | 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2
  • junos_os_evolved< 21.4 | 21.4 | 21.4:r1 | 21.4:r1-s1 | 21.4:r1-s2 | 21.4:r2 | 21.4:r2-s1 | 21.4:r2-s2 | 21.4:r3 | 21.4:r3-s1 | 21.4:r3-s2 | 21.4:r3-s3 | 21.4:r3-s4 | 21.4:r3-s5 | 21.4:r3-s6 | 22.3 | 22.3:r1 | 22.3:r1-s1 | 22.3:r1-s2 | 22.3:r2 | 22.3:r2-s1 | 22.3:r2-s2 | 22.3:r3 | 22.3:r3-s1 | 22.3:r3-s2 | 22.4 | 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2
Juniper networks2 products
  • junos os< 21.4R3-S7 | ≥ 22.3, < 22.3R3-S3 | ≥ 22.4, < 22.4R3-S5 | ≥ 23.2, < 23.2R2 | ≥ 23.4, < 23.4R2 | ≥ 22.1, < 22.1* | ≥ 22.2, < 22.2*
  • junos os evolved< 21.4R3-S7-EVO | ≥ 22.3, < 22.3R3-S3-EVO | ≥ 22.4, < 22.4R3-S5-EVO | ≥ 23.2, < 23.2R2-EVO | ≥ 23.4, < 23.4R2-EVO

2 vendors · 4 products

References

1 links