PT-2026-113914 · Juniper Networks · Junos

CVE-2026-102078

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Published

2026-10-14

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Updated

2026-10-14

CVSS v3.1

5.9

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
A Use After Free vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When web filtering for TCP traffic is configured, a high volume of DNS requests increases the likelihood of a flowd crash and restart, which leads to a complete service outage until the service has automatically recovered. This is a race condition outside the attacker's direct control.
This issue affects Junos OS on SRX Series:
  • All versions before 23.2R2-S5;
  • from 23.4 before 23.4R2-S6;
  • from 24.2 before 24.2R2-S3;
  • from 24.4 before 24.4R2-S1;
  • from 25.2 before 25.2R1-S1, 25.2R2.

Fix

Use After Free

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Weakness Enumeration

Related Identifiers

CVE-2026-102078

Affected Products

Junos