Improper Handling of Length Parameter in Juniper Networks Junos OS
CVE-2026-102054

5.3MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists

What is CVE-2026-102054?

An improper handling of length parameter inconsistency vulnerability exists in L2ALM of Juniper Networks Junos OS and Junos OS Evolved. This flaw allows unauthenticated, adjacent attackers to exploit VXLAN overlay-ping traffic to gain unauthorized access to stale PFE packet memory, potentially compromising the integrity of network 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:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
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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