CVE-2026-102048 — Junos OS: An attacker causes l2cpd crash when FNP is used with VLAN-VPLS encapsulation enabled

Description (CNA)

An Allocation of Resources Without Limits or Throttling vulnerability in the l2cpd process of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a denial of service and l2cpd restart via FNP-enabled Layer 2 interfaces. The issue is triggered when the FNP feature is enabled on a VPLS routing instance with VLAN-VPLS encapsulation enabled. This issue affects all platforms except the PTX Series and SRX Series.

Affected (CNA)

Vendor / product	Versions
Juniper Networks / Junos OS	affected 0 before 23.2R2-S7.7; affected 23.4 before 23.4R2-S8.13; affected 24.2 before 24.2R2-S5.5; affected 24.4 before 24.4R2-S5; affected 25.2 before 25.2R2-S2; affected 25.4 before 25.4R1-S3; affected 26.2 before 26.2R1-S2

CWE

CWE-770

References

https://supportportal.juniper.net/JSA112188

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.