What is CVE-2025-30657?

CVE-2025-30657 is a medium-severity vulnerability in Juniper Junos, classified under Improper Encoding or Escaping of Output. CVSS score: 5.3/10. Published 2025-04-09.

How severe is CVE-2025-30657?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Juniper Junos

CVE-2025-30657

An Improper Encoding or Escaping of Output vulnerability in the Sampling Route Record Daemon (SRRD) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When a device configure…

EPSS: 0.004 (27.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Juniper Junos — versions 21.2, 21.4, 22.2
Juniper Networks Junos Os — versions 0, 21.4, 22.2

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

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

Frequently asked questions

What is CVE-2025-30657?: CVE-2025-30657 is a medium-severity vulnerability in Juniper Junos, classified under Improper Encoding or Escaping of Output. CVSS score: 5.3/10. Published 2025-04-09.
How severe is CVE-2025-30657?: Medium severity. CVSS v3 base score is 5.3 out of 10.