CVE-2021-41338
MEDIUMWindows AppContainer Firewall Rules - Privilege Escalation
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2021-41338. PoCs published by Mario-Kart-Felix.
AI-analyzed exploit summary This repository contains a README describing CVE-2021-41338, a Windows AppContainer Firewall Rules Security Feature Bypass Vulnerability. It provides details about the vulnerability but does not include any exploit code or proof-of-concept.
Description
Windows AppContainer Firewall Rules Security Feature Bypass Vulnerability
Exploits (1)
nomisec
WRITEUP
1 stars
by Mario-Kart-Felix · poc
https://github.com/Mario-Kart-Felix/firewall-cve
This repository contains a README describing CVE-2021-41338, a Windows AppContainer Firewall Rules Security Feature Bypass Vulnerability. It provides details about the vulnerability but does not include any exploit code or proof-of-concept.
Classification
Writeup 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target:
Windows AppContainer Firewall Rules
No auth needed
Prerequisites:
Local access to the target system
mistral-large-3 · analyzed Feb 16, 2026
Full analysis →
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41338
Scores
CVSS v3
5.5
EPSS
0.0322
EPSS Percentile
86.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (13)
microsoft/windows_10
microsoft/windows_10
20h2
microsoft/windows_10
21h1
microsoft/windows_10
1607
microsoft/windows_10
1809
microsoft/windows_10
1909
microsoft/windows_10
2004
microsoft/windows_11
(2 CPE variants)
microsoft/windows_server_2016
microsoft/windows_server_2016
20h2
... and 3 more
Published
Oct 13, 2021
Tracked Since
Feb 18, 2026