CVE-2026-102081 Juniper Networks Junos OS - Denial of Service

Juniper Networks Junos OS on SRX and MX Series 23.4R2-S3 < versions < 23.4R2-S7, 24.2R2 < versions < 24.2R2-S3, 24.4 < versions < 24.4R2-S3, and 25.2 < versions < 25.2R2 contain a denial of service caused by memory leak in the packet forwarding engine when specific application services are configured, letting unauthenticated network attackers exhaust memory and disrupt traffic processing, exploit requires high connection churn.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-401

Vendor fix

Upgrade to versions 23.4R2-S7, 24.2R2-S3, 24.4R2-S3, 25.2R1-S2, 25.2R2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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