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PatchSiren cyber security CVE debrief

CVE-2026-102016 Juniper Networks CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-10-14T16:45:37.419Z and has not been modified since then. This high-severity vulnerability in Junos OS and Junos OS Evolved can cause a routing outage when BGP MVPN signaling is enabled, potentially disrupting network infrastructure and services. Network administrators and security teams should assess exposure and potential impact. Evidence is limited, and specific details on exploitation are not provided, so verification and caution are advised.

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
2026-10-16
Advisory published
2026-10-14
Advisory updated
2026-10-16

Who should care

Network administrators and security teams responsible for Junos OS and Junos OS Evolved deployments should assess exposure and potential impact.

Why it matters

CVE-2026-102016 is a high-severity vulnerability in Junos OS and Junos OS Evolved that can cause a routing outage when BGP MVPN signaling is enabled, potentially disrupting network infrastructure and services. Network administrators and security teams should prioritize verifying exposure, assessing potential impact, and considering compensating controls to mitigate risks. Evidence is limited, and specific details on exploitation are not provided, so verification and caution are advised.

  • Denial of service via routing outage when BGP MVPN signaling is enabled.
  • Potential disruption to network infrastructure and services.
  • Need for verification of Junos OS and Junos OS Evolved versions against affected versions list.
  • Potential need for compensating controls to mitigate risks.

Technical summary

The rpd process in Junos OS and Junos OS Evolved is vulnerable to an Improper Validation of Specified Quantity in Input attack, allowing a configured BGP MVPN peer to cause a denial of service via a BGP MVPN signaling update. This vulnerability affects Junos OS and Junos OS Evolved deployments, and network administrators should verify exposure and assess potential impact on network infrastructure and services.

Defensive priority

Network administrators and security teams should prioritize verifying exposure and assessing potential impact.

Recommended defensive actions

  • Verify exposure by checking Junos OS and Junos OS Evolved versions against the provided affected versions list.
  • Assess potential impact on network infrastructure and services.
  • Monitor for potential BGP MVPN signaling updates that could exploit this vulnerability.
  • Consider implementing compensating controls to mitigate potential risks.

Evidence notes

The CVE record and source item provide details on the vulnerability in Junos OS and Junos OS Evolved, but specific details on exploitation are limited.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-102016 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-102016

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

  • CVE-2026-102016 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-102016

    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.