What is CVE-2025-52947?

CVE-2025-52947 is a medium-severity vulnerability in Juniper Acx1000, classified under Improper Handling of Exceptional Conditions. CVSS score: 6.5/10. Published 2025-07-11.

How severe is CVE-2025-52947?

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

Vulnerability in Juniper Acx1000

CVE-2025-52947

An Improper Handling of Exceptional Conditions vulnerability in route processing of Juniper Networks Junos OS on specific end-of-life (EOL) ACX Series platforms allows an attacker to crash the Forwarding Engine Board (FEB) by flapping an i…

EPSS: 0.003 (17.0th 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 Acx1000
Juniper Acx1100
Juniper Acx2000
Juniper Acx2100
Juniper Acx2200
Juniper Acx4000
Juniper Acx5048
Juniper Acx5096
Juniper Junos — versions 21.2
Juniper Networks Junos Os — versions 0

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

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

Frequently asked questions

What is CVE-2025-52947?: CVE-2025-52947 is a medium-severity vulnerability in Juniper Acx1000, classified under Improper Handling of Exceptional Conditions. CVSS score: 6.5/10. Published 2025-07-11.
How severe is CVE-2025-52947?: Medium severity. CVSS v3 base score is 6.5 out of 10.