CVE-2026-102039: CWE-476 NULL Pointer Dereference in Juniper Networks Junos OS
Description
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause a denial of service via a malformed RSVP Path message received on an EVPL LMP control channel.
CVSS v3.1
Score 6.5medium
Affected software
Juniper Networks
Junos OS
Juniper Networks
Junos OS Evolved
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-102039) involves a NULL Pointer Dereference in the rpd process of Juniper Networks Junos OS and Junos OS Evolved. It can be triggered by an adjacent attacker who sends a malformed RSVP Path message on an EVPL LMP control channel, resulting in a denial of service condition. The issue affects a range of Junos OS versions prior to certain fixed releases, impacting both standard and evolved variants. The CVSS 3.1 vector indicates the attack requires adjacent network access, no privileges or user interaction, and results in high impact on availability only.
Potential Impact
The vulnerability allows an adjacent attacker to cause a denial of service by crashing the rpd process through a malformed RSVP Path message. There is no impact on confidentiality or integrity. The disruption affects network routing processes, potentially causing service outages or degraded network performance.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the current data. Users should monitor Juniper Networks advisories for updates and apply patches once available. Until then, limiting adjacent network access to trusted entities may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- juniper
- Date Reserved
- 2026-09-28T17:35:40.521Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acfb6672cdf04f6569794c3
Added to database: 10/14/2026, 17:05:43 UTC
Last enriched: 10/14/2026, 18:34:32 UTC
Last updated: 10/14/2026, 20:49:11 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.