CVE-2026-102084 Juniper Networks Junos OS - Remote Code Execution

Juniper Networks Junos OS on SRX Series < 23.2R2-S7.7, 23.4 < 23.4R2-S7, 24.2 < 24.2R2-S4, 24.4 < 24.4R2-S3, 25.2 < 25.2R2, and 25.4 < 25.4R1-S3 contain a buffer overflow caused by improper validation of malformed attributes in AutoDiscovery VPN messages, letting authenticated network attackers execute remote code, exploit requires shared secret or compromised peer.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-1286

Vendor fix

Upgrade to Junos OS versions 23.2R2-S7.7, 23.4R2-S7, 24.2R2-S4, 24.4R2-S3, 25.2R2, or 25.4R1-S3 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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