Denial of Service Vulnerability in Junos OS by Juniper Networks
CVE-2026-102048

7.1HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists

What is CVE-2026-102048?

A vulnerability in the l2cpd process of Juniper Networks' Junos OS allows for resource allocation without limits or throttling. This issue enables an adjacent unauthenticated attacker to launch a denial of service attack, resulting in a potential restart of the l2cpd process. The vulnerability is specifically triggered when the FNP feature is enabled on a VPLS routing instance that uses VLAN-VPLS encapsulation. Affected platforms include all except the PTX Series and SRX Series.

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/JSA112188
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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