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CVE-2023-36846

CWE-306

High

76.7

RPS

Description

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series 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. This issue affects Juniper Networks Junos OS on SRX Series: * All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3.

Source: NVD

Signals

CVSS
5.3
Medium · v3.1
EPSS
93.47%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Nov 2023
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-306
Published
17 Aug 2023
Last modified 26 Feb 2026

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2023-36846 · RPS 76.7 · DevSecure Intelligence