CVE-2026-102068

7.5High

Published 14 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash

7.5High

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Impact: High impact on availability
Weakness: CWE-121

Impact

Unauthenticated remote attackers can crash the router kernel by sending a crafted TCP packet. They only need network reachability to a service using key-chain authentication for BGP or LDP.

Root cause

A stack-based buffer overflow in the kernel triggers when handling TCP packets for key-chain authenticated BGP or LDP sessions.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fix & remediation

Apply the patched Junos OS Evolved release from Juniper advisory JSA112250, or temporarily disable key-chain authentication on BGP and LDP sessions until patched.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD 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.

References

https://supportportal.juniper.net/JSA112250

Source: nvd.nist.gov/vuln/detail/CVE-2026-102068