CVE-2026-33792 CRITICAL

CVE-2026-33792: Junos OS: SRX Series: An attacker causes remote code execution and denial of service when a GRE tunnel is configured

Vendor Juniper Networks
Product Junos OS
Weakness CWE-121
Published October 14, 2026
Last update October 15, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A Stack-based Buffer Overflow vulnerability in the srxpfe process of Juniper Networks Junos OS on SRX Series allows an unauthenticated network attacker to execute code as root or cause a denial of service via a crafted packet received on a configured GRE tunnel.

Key dates

02Disclosure timeline

October 14, 2026 CVE published
October 15, 2026 Record updated