MEDIUMCVSS v3.1 5.3Actively exploited · CISA KEV since 2023-11-13Vulnerability

CVE-2023-36844

Juniper Junos OS on EX Series contains a PHP external variable modification vulnerability that allows an unauthenticated, network-based attacker to control certain, important environment variables. Using a crafted request an attacker is able to modify certain PHP environment variables, leading to partial loss of integrity, which may allow chaining to other vulnerabilities.

Properties

Euvd product
Junos OS
Vulnerability name
Juniper Junos OS EX Series PHP External Variable Modification Vulnerability
First seen
2025-10-21T23:05:40+00:00
Cvss score
5.3
Epss score
0.89958
Last seen
2026-10-19T12:00:27+00:00
Due date
2023-11-17
Euvd assigner
juniper
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2023-11-13T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2023-11-13
Score
5.3
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Juniper Networks
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
In Signal since
initial import (Sep 2026)
Euvd base score
5.3

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CVE-2023-36844 (CVSS v3.1 5.3) — Ninja Signal Threat Intelligence | Ninja Signal