Memory Management Vulnerability in Junos OS on MX Series by Juniper Networks
CVE-2025-30647
Key Information:
- Vendor
Juniper Networks
- Status
- Vendor
- CVE Published:
- 9 April 2025
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What is CVE-2025-30647?
A memory leak vulnerability exists within the packet forwarding engine of Juniper Networks Junos OS on MX Series, enabling unauthenticated adjacent attackers to execute a Denial-of-Service attack. This issue arises during subscriber management operations, where login/logout activities trigger a continuous memory leak. As leaked memory accumulates, it eventually depletes system resources, leading to a potential crash of the device. It is crucial for organizations using affected versions to review their systems and apply the necessary patches to mitigate risks.

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Affected Version(s)
Junos OS MX Series 0 < 21.2R3-S9
Junos OS MX Series 21.4 < 21.4R3-S10
Junos OS MX Series 22.2 < 22.2R3-S6
References
CVSS V4
Timeline
- ๐พ
Exploit known to exist
Vulnerability published
Vulnerability Reserved