CVE-2025-52953
Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
11/07/2025
Last modified:
11/07/2025
Description
An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a valid BGP UPDATE packet to cause a BGP session reset, resulting in a Denial of Service (DoS). <br />
<br />
Continuous receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.<br />
<br />
This issue affects iBGP and eBGP and both IPv4 and IPv6 are affected by this vulnerability.<br />
<br />
This issue affects Junos OS:<br />
<br />
<br />
* All versions before 21.2R3-S9,<br />
* from 21.4 before 21.4R3-S11,<br />
* from 22.2 before 22.2R3-S7,<br />
* from 22.4 before 22.4R3-S7,<br />
* from 23.2 before 23.2R2-S4,<br />
* from 23.4 before 23.4R2-S4,<br />
* from 24.2 before 24.2R2,<br />
* from 24.4 before 24.4R1-S3, 24.4R2<br />
<br />
<br />
Junos OS Evolved:<br />
<br />
<br />
<br />
* All versions before 22.2R3-S7-EVO,<br />
* from 22.4-EVO before 22.4R3-S7-EVO,<br />
* from 23.2-EVO before 23.2R2-S4-EVO,<br />
* from 23.4-EVO before 23.4R2-S4-EVO,<br />
* from 24.2-EVO before 24.2R2-EVO,<br />
* from 24.4-EVO before 24.4R1-S3-EVO, 24.4R2-EVO.
Impact
Base Score 4.0
7.10
Severity 4.0
HIGH
Base Score 3.x
6.50
Severity 3.x
MEDIUM