CVE Catalog

CVE-2026-102177

HighCVSS 7.6
Published: Translated: NVD NIST

Summary

An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service when IS-IS link protection and backup-selection are configured.

Risk Assessment

This can crash rpd and disrupt routing, impacting network service availability.

Recommendation

Upgrade Junos OS and Junos OS Evolved to patched versions; consider disabling IS-IS link protection and backup-selection until patched.

Other vulnerabilities in Junos OS

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Original NVD description (English source)

An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service when IS-IS link protection and backup-selection are configured.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS