CVE-2026-101974 Information disclosure in Junos OS

High 7.1 Published Updated

Adjacent OSPF peers can disclose memory or crash the routing process via malformed packets when link-local TE is enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-101974?

CVE-2026-101974 is a high-severity vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An Improper Validation of Specified Quantity in Input vulnerability in rpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to disclose rpd memory or cause a rpd crash via a malformed OSPF packets.

Weakness: CWE-1284

Which versions are affected by CVE-2026-101974?

How do I fix CVE-2026-101974?

No fix has been published for CVE-2026-101974 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-101974 being exploited?

There is no known exploitation of CVE-2026-101974 in the wild and no public exploit code.

Sources

Also known as GHSA-94wf-w5qv-6v9g.

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