Findings

CVE-2026-102063

Junos OS: MX Series: An unauthenticated network attacker causes an rpd crash when HFRR link protection is used

Published Oct 14, 2026 · updated Oct 14, 2026 · Juniper Networks Junos OS

A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in a VRF.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 14, 2026 · NIST NVD

    Detected

    A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in a VRF.

  2. Oct 14, 2026 · NIST NVD

    Updated

    A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in a VRF.

Affected

  • vendor Juniper Networks Junos OSversion unspecified

Sources

  • A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in a VRF.

    vulnerability.circl.lu
  • CVE.orgCVE-2026-102063

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2026-102063

    A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in a VRF.

    nvd.nist.gov

References

CVE-2026-102063 · ZeroDay Findings