CVE Alert: CVE-2025-30658

Vulnerability Summary: CVE-2025-30658

A Missing Release of Memory after Effective Lifetime vulnerability in the Anti-Virus processing of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). On all SRX platforms with Anti-Virus enabled, if a server sends specific content in the HTTP body of a response to a client request, these packets are queued by Anti-Virus processing in Juniper Buffers (jbufs) which are never released. When these jbufs are exhausted, the device stops forwarding all transit traffic. A jbuf memory leak can be noticed from the following logs: (.) Warning: jbuf pool id <#> utilization level (%) is above %! To recover from this issue, the affected device needs to be manually rebooted to free the leaked jbufs. This issue affects Junos OS on SRX Series: * all versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S10, * 22.2 versions before 22.2R3-S6, * 22.4 versions before 22.4R3-S6, * 23.2 versions before 23.2R2-S3, * 23.4 versions before 23.4R2-S3, * 24.2 versions before 24.2R2.

Affected Endpoints:

No affected endpoints listed.

Published Date:

4/9/2025, 8:15:29 PM

🔥 CVSS Score:

Exploit Status:

Not Exploited

References:

• https://supportportal.juniper.net/JSA96469

Recommended Action:

No proposed action available. Please refer to vendor documentation for updates.

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