CVE-2026-102068 Memory corruption in Junos OS Evolved

Critical 9.2 Published Updated

Remote attackers can cause a kernel panic in Junos OS Evolved via crafted TCP packets when BGP or LDP key-chain authentication is enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-102068?

CVE-2026-102068 is a critical memory corruption vulnerability in Juniper Networks Junos OS Evolved, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A Stack-based Buffer Overflow vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated remote attacker to trigger a kernel panic via a crafted TCP packet when key-chain authentication is used for BGP or LDP.

Weakness: CWE-121

Which versions are affected by CVE-2026-102068?

How do I fix CVE-2026-102068?

No fix has been published for CVE-2026-102068 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-102068 being exploited?

There is no known exploitation of CVE-2026-102068 in the wild and no public exploit code.

Sources

Also known as GHSA-74c5-qgfm-w9w6.

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