Improper Memory Handling in Junos OS and Evolved Platforms by Juniper Networks
CVE-2026-102051

7.1HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists

What is CVE-2026-102051?

An improper release of memory before removing the last reference in the l2cpd process of Juniper Networks' Junos OS and Junos OS Evolved leads to potential memory exhaustion. This vulnerability can be exploited by an adjacent unauthenticated attacker through LLDP traffic, particularly when fast receive processing is enabled, causing disruption to Layer 2 control-plane operations.

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:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent 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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