CVE-2026-102176 Juniper Networks Junos OS - Buffer Overflow

Juniper Networks Junos OS contains a buffer overflow caused by unchecked buffer copy in the SDK service process, letting unauthenticated network attackers cause denial of service or compromise the Routing Engine, exploit requires SDK service and JDAF routing instance enabled.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Denial Of Service, Remote Code Execution
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-120

Vendor fix

Update to the latest Junos OS version 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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