CVE-2026-101948
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 unauthenticated BGP peer can crash the routing protocol daemon (rpd), causing a denial of service. The attacker needs an established BGP session with the device to send a crafted FlowSpec update.
Root cause
A NULL pointer dereference in the routing protocol daemon (rpd) when processing a malformed BGP FlowSpec update.
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 specified in Juniper advisory JSA112187, or disable BGP FlowSpec peering on untrusted sessions as an interim mitigation.
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 unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.