CVE-2025-52947

CWE-755 — Improper Exception Handling4 documents4 sources
Severity
7.1HIGH
EPSS
0.0%
top 87.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Juniper Networks Junos OSJuniper Junos
Timeline
PublishedJul 11

Description

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 interface, leading to a Denial of Service (DoS). On ACX1000, ACX1100, ACX2000, ACX2100, ACX2200, ACX4000, ACX5048, and ACX5096 devices, FEB0 will crash when the primary path port of the L2 circuit IGP (Interior Gateway Protocol) on the local device goes down. T…

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Affected Packages2 packages

▶CVEListV5juniper_networks/junos_os< 21.2R3-S9
▶NVDjuniper/junos< 21.2+1

🔴Vulnerability Details

2
CVEList
Junos OS: ACX Series: When 'hot-standby' mode is configured for an L2 circuit, interface flap causes the FEB to crash↗2025-07-11
▶
GHSA
GHSA-xw3x-vr3j-962f: An Improper Handling of Exceptional Conditions vulnerability in route processing of Juniper Networks Junos OS on specific end-of-life (EOL) ACX Series↗2025-07-11
▶

📋Vendor Advisories

1
Juniper
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↗2025-07-11
▶
CVE-2025-52947 (HIGH CVSS 7.1) | An Improper Handling of Exceptional | cvebase.io