What is CVE-2025-30651?

CVE-2025-30651 is a high-severity vulnerability in Juniper Junos, classified under Buffer Access with Incorrect Length Value. CVSS score: 7.5/10. Published 2025-04-09.

How severe is CVE-2025-30651?

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

Vulnerability in Juniper Junos

CVE-2025-30651

A Buffer Access with Incorrect Length Value 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 an…

EPSS: 0.004 (32.4th 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 21.2, 21.4, 22.2
Juniper Junos_os_evolved — versions 21.2, 21.4, 22.2
Juniper Networks Junos Os — versions 0, 21.4, 22.2
Juniper Networks Junos Os Evolved — versions 0, 21.4-EVO, 22.2-EVO

Weakness classification (CWE)

CWE-805 — Buffer Access with Incorrect Length Value

References

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

Frequently asked questions

What is CVE-2025-30651?: CVE-2025-30651 is a high-severity vulnerability in Juniper Junos, classified under Buffer Access with Incorrect Length Value. CVSS score: 7.5/10. Published 2025-04-09.
How severe is CVE-2025-30651?: High severity. CVSS v3 base score is 7.5 out of 10.