What is CVE-2025-30646?

CVE-2025-30646 is a medium-severity vulnerability in Juniper Junos, classified under CWE-195. CVSS score: 6.5/10. Published 2025-04-09.

How severe is CVE-2025-30646?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Junos

CVE-2025-30646

A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malfor…

EPSS: 0.002 (14.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/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 21.4, 22.2, 22.4
Juniper Networks Junos Os — versions 0, 21.4, 22.2
Juniper Networks Junos Os Evolved — versions 0, 22.2-EVO, 22.4-EVO

Weakness classification (CWE)

CWE-195

References

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

Frequently asked questions

What is CVE-2025-30646?: CVE-2025-30646 is a medium-severity vulnerability in Juniper Junos, classified under CWE-195. CVSS score: 6.5/10. Published 2025-04-09.
How severe is CVE-2025-30646?: Medium severity. CVSS v3 base score is 6.5 out of 10.