CVE-2026-102028
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
An unauthenticated remote BGP peer can crash the routing protocol daemon (rpd), causing a complete denial of service across the device. The attacker only needs an established BGP session with specific L2VPN signaling enabled.
Root cause
A NULL pointer dereference in rpd triggers when processing multiple BGP UPDATE messages over a single TCP session configured with 'family l2vpn auto-discovery-only'.
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 Junos OS / Junos OS Evolved to the resolved release specified in Juniper advisory JSA112187. As an interim workaround, disable or remove the 'family l2vpn auto-discovery-only' hierarchy under the affected BGP neighbor/group configurations if operational requirements permit.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote BGP peer to cause a denial of service when multiple UPDATEs occur over a single TCP session with 'bgp family l2vpn auto-discovery-only' configured.