CVE-2025-21202

MEDIUM

Windows Recovery Environment Agent - Elevation of Privilege

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-21202. PoCs published by 7amzahard.

AI-analyzed exploit summary This repository contains a Python-based scanner for detecting reflected XSS (CVE-2025-12101) in Citrix NetScaler ADC/Gateway appliances. It sends a crafted SAMLResponse payload to `/cgi/logout` and checks for reflection of a simple `<script>alert(1)</script>` payload.

Description

Windows Recovery Environment Agent Elevation of Privilege Vulnerability

Exploits (1)

nomisec SCANNER 8 stars
by 7amzahard · poc
https://github.com/7amzahard/CVE-2025-21202-exploit

This repository contains a Python-based scanner for detecting reflected XSS (CVE-2025-12101) in Citrix NetScaler ADC/Gateway appliances. It sends a crafted SAMLResponse payload to `/cgi/logout` and checks for reflection of a simple `<script>alert(1)</script>` payload.

Classification
Scanner 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Citrix NetScaler ADC and Citrix NetScaler Gateway (specific versions not specified)
No auth needed
Prerequisites: Network access to the target appliance · Target must be configured as a Gateway or AAA virtual server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Patch, Vendor Advisory vendor-advisory patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21202

Scores

CVSS v3 6.1
EPSS 0.0086
EPSS Percentile 53.8%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-284
Status published
Products (30)
Microsoft/Windows 10 Version 1507 10.0.10240.0 - 10.0.10240.20890
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.7699
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.6775
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.5371
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.5371
Microsoft/Windows 11 version 22H2 10.0.22621.0 - 10.0.22621.4751
Microsoft/Windows 11 version 22H3 10.0.22631.0 - 10.0.22631.4751
Microsoft/Windows 11 Version 23H2 10.0.22631.0 - 10.0.22631.4751
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.2894
Microsoft/Windows Server 2016 10.0.14393.0 - 10.0.14393.7699
... and 20 more
Published Jan 14, 2025
Tracked Since Feb 18, 2026