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PatchSiren cyber security CVE debrief

CVE-2026-102041 Juniper Networks CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-10-14T16:51:47.688Z and has not been modified since then. This medium-severity vulnerability in Junos OS and Junos OS Evolved can cause a denial of service via malformed RSVP signaling. Network administrators and security teams should assess exposure and potential impact. The vulnerability is caused by a Reachable Assertion issue in the rpd routing daemon, allowing an adjacent unauthenticated network attacker to cause a denial of service when RSVP is enabled.

Vendor
Juniper Networks
Product
Junos OS
CVSS
MEDIUM 6.5
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

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

Why it matters

CVE-2026-102041 is a medium-severity vulnerability in Junos OS and Junos OS Evolved that can cause a denial of service via malformed RSVP signaling. Network administrators and security teams should prioritize verifying exposure and assessing potential impact.

  • Denial of service via routing daemon crash
  • Potential disruption to network operations
  • Need for verification of Junos OS and Junos OS Evolved versions
  • Potential for increased security monitoring and incident response

Technical summary

A Reachable Assertion vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated network attacker to cause a denial of service via malformed RSVP signaling when RSVP is enabled. The vulnerability affects Junos OS and Junos OS Evolved systems, and network administrators should verify exposure and assess potential impact. The issue is related to the processing of RSVP signaling, and an attacker can exploit it to cause a denial of service.

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
  • Assess potential impact on network operations
  • Apply vendor-provided patches or updates
  • Monitor network activity for suspicious RSVP signaling

Evidence notes

The CVE record and source item provide details on a Reachable Assertion vulnerability in Junos OS and Junos OS Evolved, allowing an adjacent unauthenticated network attacker to cause a denial of service via malformed RSVP signaling when RSVP is enabled.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-102041 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-102041

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

  • CVE-2026-102041 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-102041

    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.