CVE-2025-52980: SRX300 Series: rpd will crash upon receiving a specific, valid BGP UPDATE message

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branch	Fixed in
Junos OS (SRX300 Series) 22.2	22.2R3-S4 or later
Junos OS (SRX300 Series) 22.3	22.3R3-S3 or later
Junos OS (SRX300 Series) 22.4	22.4R3-S2 or later
Junos OS (SRX300 Series) 23.2	23.2R2 or later
Junos OS (SRX300 Series) 23.4	23.4R2 or later
Junos OS (SRX300 Series) 0	Not affected

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

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.

Am I affected?

To be exposed to this issue the device needs to be configure to process incoming domain-path-id attributes via:

[ protocols bgp ... domain-path-id receive ]

Please note that Junos versions before 22.3R3-S3, 22.4R3, 22.4R3-S1, 23.2R2, 23.3R2 and 23.4R1 accept this attribute by default.

Workarounds

There are no known workarounds for this issue.

Exploitation

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.