What is CVE-2025-52980?

CVE-2025-52980 is a high-severity vulnerability in Juniper Junos, classified under CWE-198. CVSS score: 7.5/10. Published 2025-07-11.

How severe is CVE-2025-52980?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Juniper Junos

CVE-2025-52980

A Use of Incorrect Byte Ordering vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS on SRX300 Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When a BGP update is received over an established BGP session which contains a specific, valid, optional, transitive path attribute, rpd will crash and restart. This issue affects eBGP and iBGP over IPv4 and IPv6. This issue affects: Junos OS: * 22.1 versions from 22.1R1 before 22.2R3-S4, * 22.3 versions before 22.3R3-S3, * 22.4 versions before 22.4R3-S2, * 23.2 versions before 23.2R2, * 23.4 versions before 23.4R2.

EPSS: 0.005 (37.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 22.1, 22.3, 22.4
Juniper Srx300
Juniper Srx320
Juniper Srx340
Juniper Srx345
Juniper Srx380
Juniper Networks Junos Os — versions 22.2, 22.3, 22.4

Weakness classification (CWE)

CWE-198

References

sirt@juniper.net (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-52980?: CVE-2025-52980 is a high-severity vulnerability in Juniper Junos, classified under CWE-198. CVSS score: 7.5/10. Published 2025-07-11.
How severe is CVE-2025-52980?: High severity. CVSS v3 base score is 7.5 out of 10.