PT-2025-29240 · Juniper Networks · Junos

Published

2025-07-09

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Updated

2025-07-11

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CVE-2025-52951

CVSS v4.0

6.9

Medium

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:M/U:X
Name of the Vulnerable Software and Affected Versions: Juniper Networks Junos OS versions prior to 21.2R3-S9 Juniper Networks Junos OS versions 21.4 before 21.4R3-S11 Juniper Networks Junos OS versions 22.2 before 22.2R3-S7 Juniper Networks Junos OS versions 22.4 before 22.4R3-S7 Juniper Networks Junos OS versions 23.2 before 23.2R2-S4 Juniper Networks Junos OS versions 23.4 before 23.4R2-S5 Juniper Networks Junos OS versions 24.2 before 24.2R2-S1 Juniper Networks Junos OS versions 24.4 before 24.4R1-S2 and 24.4R2
Description: A protection mechanism failure exists in kernel filter processing. An attacker sending IPv6 traffic to an interface can bypass firewall filtering configured on the interface. This is due to the payload-protocol match not being supported, causing firewall filter terms to accept all packets without further action.
Recommendations: Update to Junos OS version 21.2R3-S9 or later. Update to Junos OS version 21.4R3-S11 or later. Update to Junos OS version 22.2R3-S7 or later. Update to Junos OS version 22.4R3-S7 or later. Update to Junos OS version 23.2R2-S4 or later. Update to Junos OS version 23.4R2-S5 or later. Update to Junos OS version 24.2R2-S1 or later. Update to Junos OS version 24.4R1-S2 or later.

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

BDU:2025-08741
CVE-2025-52951

Affected Products

Junos