Firetruck

CVE-2023-36846

KEV
Updated Oct 21, 2025 · PUBLISHED
View KEV entry →

Description

Juniper Junos OS on SRX Series contains a missing authentication for critical function vulnerability that allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't require authentication, an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Junos OSJuniper Networks / Junos OS>= 0, < 20.4R3-S8affected
Junos OSJuniper Networks / Junos OS>= 21.1, < 21.1*affected
Junos OSJuniper Networks / Junos OS>= 21.2, < 21.2R3-S6affected
Junos OSJuniper Networks / Junos OS>= 21.3, < 21.3R3-S5affected
Junos OSJuniper Networks / Junos OS>= 21.4, < 21.4R3-S5affected
Junos OSJuniper Networks / Junos OS>= 22.1, < 22.1R3-S3affected
Junos OSJuniper Networks / Junos OS>= 22.2, < 22.2R3-S2affected
Junos OSJuniper Networks / Junos OS>= 22.3, < 22.3R2-S2, 22.3R3affected
Junos OSJuniper Networks / Junos OS>= 22.4, < 22.4R2-S1, 22.4R3affected