CVE-2025-30647

CWE-401 — Memory Leak4 documents4 sources
Severity
7.1HIGH
EPSS
0.1%
top 67.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Juniper Networks Junos OSJuniper Junos
Timeline
PublishedApr 9

Description

A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS). In a subscriber management scenario, login/logout activity triggers a memory leak, and the leaked memory gradually increments and eventually results in a crash. user@host> show chassis fpc Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C)…

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_os21.4 — 21.4R3-S10+6
▶NVDjuniper/junos< 21.2+7

🔴Vulnerability Details

2
GHSA
GHSA-f7rm-gv39-r2j5: A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series all↗2025-04-09
▶
CVEList
Junos OS: MX Series: Subscriber login/logout activity will lead to a memory leak↗2025-04-09
▶

📋Vendor Advisories

1
Juniper
CVE-2025-30647: A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series all↗2025-04-09
▶
CVE-2025-30647 (HIGH CVSS 7.1) | A Missing Release of Memory after E | cvebase.io