CVE-2026-101940
7.5HighPublished 14 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Impact
- High impact on availability
- Weakness
- CWE-476
Impact
A remote, configured BGP peer can crash the rpd routing daemon and cause a denial of service by sending a malformed BGP UPDATE. Exploitation requires network reachability as a BGP peer with ISO-VPN and egress-protection enabled.
Root cause
A NULL pointer dereference occurs in the rpd daemon while processing a BGP UPDATE message on routers configured with ISO-VPN and egress-protection.
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
Upgrade to the patched Junos OS / Junos OS Evolved release referenced in JSA112187; if upgrading immediately is not possible, disable ISO-VPN or egress-protection, or restrict BGP peer connections to trusted neighbors.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured BGP peer to cause a denial of service via a BGP UPDATE when ISO-VPN and egress-protection configuration is enabled.