High severity · published Jul 11, 2025
CVE-2025-52980
Junos OS: SRX300 Series: rpd will crash upon receiving a specific, valid BGP UPDATE message
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS · Juniper
22.2 before 22.2R3-S4; 22.3 before 22.3R3-S3; 22.4 before 22.4R3-S2; 23.2 before 23.2R2; 23.4 before 23.4R2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-52980
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-52980
Vendor Advisory
https://supportportal.juniper.net/JSA100084
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