CVE-2026-102175 Juniper Networks Junos OS - Remote Code Execution & Denial of Service

Juniper Networks Junos OS and Junos OS Evolved contain a heap-based buffer overflow caused by improper handling of frames in the sdxd service-deployment daemon, letting remote unauthenticated attackers execute code as root or cause denial of service via crafted TCP frames, exploit requires control or interception of the SDX/SRC server connection.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-122

Vendor fix

Update to the latest Junos OS and Junos OS Evolved versions with the vulnerability fixed.

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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