CVE-2026-102064: CWE-617 Reachable Assertion in Juniper Networks Junos OS
Description
CVE-2026-102064 is a reachable assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. It allows an attacker to cause a crash of the rpd process by sending malformed BGP MCAST-VPN updates from a configured eBGP peer. This vulnerability has a high severity rating with a CVSS score of 7.5 and impacts availability without affecting confidentiality or integrity.
CVSS v3.1
Score 7.5high
Affected software
Juniper Networks
Junos OS
Juniper Networks
Junos OS Evolved
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-102064) exists in the routing protocol daemon (rpd) component of Juniper Networks Junos OS and Junos OS Evolved. An attacker who can send malformed BGP MCAST-VPN updates from a configured eBGP peer can trigger a reachable assertion failure, causing the rpd process to crash. The vulnerability affects multiple versions of Junos OS and Junos OS Evolved as specified. The CVSS 3.1 base score is 7.5, reflecting a network attack vector with low complexity, no privileges required, no user interaction, and impacts availability only.
Potential Impact
Successful exploitation results in a denial of service condition by crashing the routing protocol daemon (rpd), which may disrupt routing functionality on affected devices. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch links are provided, users should monitor Juniper Networks advisories for updates and apply any released patches promptly. In the meantime, restricting or validating BGP MCAST-VPN updates from eBGP peers may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- juniper
- Date Reserved
- 2026-09-28T17:35:40.523Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acfb2fa2cdf04f656962365
Added to database: 10/14/2026, 16:51:06 UTC
Last enriched: 10/14/2026, 17:03:38 UTC
Last updated: 10/14/2026, 19:00:32 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.