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PatchSiren cyber security CVE debrief

CVE-2026-102184 Juniper Networks CVE debrief

A vulnerability in Junos OS and Junos OS Evolved allows a configured EVPN signaling peer to cause an rpd crash via a malformed SRv6 structure carried in an EVPN route update, resulting in a denial of service affecting routing adjacencies. This issue affects Junos OS and Junos OS Evolved platforms. The vulnerability is related to an Improper Validation of Specified Quantity in Input in the routing protocol daemon (rpd). Defenders should assess exposure and prioritize verification and patching to prevent potential rpd crashes and denial of service. The source item and CVE record provide details on the vulnerability.

Vendor
Juniper Networks
Product
Junos OS
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-14
Original CVE updated
2026-10-14
Advisory published
2026-10-14
Advisory updated
2026-10-14

Who should care

Defenders responsible for Junos OS and Junos OS Evolved systems, particularly those using EVPN signaling, should assess exposure and prioritize verification and patching to prevent potential rpd crashes and denial of service.

Why it matters

Defenders should prioritize verifying and updating affected Junos OS and Junos OS Evolved versions to prevent potential rpd crashes and denial of service affecting routing adjacencies.

  • Potential rpd crashes and denial of service affecting routing adjacencies
  • Need to verify and update affected Junos OS and Junos OS Evolved versions
  • Possible disruption to network operations and services

Technical summary

The vulnerability is caused by an Improper Validation of Specified Quantity in Input in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos Evolved platforms. A configured EVPN signaling peer can cause an rpd crash via a malformed SRv6 structure carried in an EVPN route update, resulting in a denial of service affecting routing adjacencies. The issue affects Junos OS and Junos OS Evolved. The vulnerability can be mitigated by verifying and updating affected versions, monitoring for potential rpd crashes, and implementing vendor-provided patches and advisories.

Defensive priority

Defenders should prioritize verifying and updating affected Junos OS and Junos OS Evolved versions to prevent potential rpd crashes and denial of service.

Recommended defensive actions

  • Verify and update affected Junos OS and Junos OS Evolved versions
  • Monitor for potential rpd crashes and denial of service
  • Review and implement vendor-provided patches and advisories
  • Perform thorough vulnerability assessments
  • Implement compensating controls for exposed systems
  • Review asset inventory for affected products
  • Track exceptions and retest remediated assets

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description, affected versions, and potential impact. However, limited information is available on potential exploits or attacks.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-102184 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-102184

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-102184 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-102184

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.