CVE-2022-21974

HIGH

Roaming Security Rights Management Services - RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2022-21974. PoCs published by 0vercl0k.

AI-analyzed exploit summary This repository provides a detailed analysis of CVE-2022-21974, a vulnerability in RMSRoamingSecurity involving an uninitialized pointer free. The writeup includes root cause analysis, proof-of-concept steps, and debugging output.

Description

Roaming Security Rights Management Services Remote Code Execution Vulnerability

Exploits (1)

nomisec WRITEUP 60 stars
by 0vercl0k · poc
https://github.com/0vercl0k/CVE-2022-21974

This repository provides a detailed analysis of CVE-2022-21974, a vulnerability in RMSRoamingSecurity involving an uninitialized pointer free. The writeup includes root cause analysis, proof-of-concept steps, and debugging output.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Office Word 2019, Windows 10/11
No auth needed
Prerequisites: PageHeap enabled via Gflags on winword.exe · Debugger attached to Word
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0481
EPSS Percentile 90.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

Status published
Products (11)
microsoft/windows_10 20h2 (3 CPE variants)
microsoft/windows_10 21h1 (3 CPE variants)
microsoft/windows_10 21h2 (3 CPE variants)
microsoft/windows_10 1607 (2 CPE variants)
microsoft/windows_10 1809 (3 CPE variants)
microsoft/windows_10 1909 (3 CPE variants)
microsoft/windows_11 (2 CPE variants)
microsoft/windows_server 20h2
microsoft/windows_server 2022
microsoft/windows_server_2016
... and 1 more
Published Feb 09, 2022
Tracked Since Feb 18, 2026