Denial of Service Vulnerability in Juniper Networks Junos OS for QFX5K-family Platforms
CVE-2026-102053

6.9MEDIUM

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Junos Os Evolved
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-102053?

A flaw in Juniper Networks' Junos OS and Junos OS Evolved affects QFX5K-family platforms, where an improper release of memory may lead to a denial of service. This vulnerability can be exploited by a configured EVPN peer, potentially leading to memory exhaustion through flawed EVPN-VXLAN active-active multihoming route processing. Effective remediation is crucial for maintaining the integrity and availability of network services.

Affected Version(s)

Junos OS 0 < 23.2R2-S7.7

Junos OS 23.4 < 23.4R2-S8.13

Junos OS 24.2 < 24.2R2-S5.5

References

https://supportportal.juniper.net/JSA112187
vendor-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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