CVE-2024-43584: Microsoft Windows 11 version 21H2 · Protection Mechanism Failure
Affects Microsoft Windows 11 version 21H2Source GCVE Database
Not known to be exploited · CVSS 7.7 High · patch available : patch Microsoft Windows 11 version 21H2 soon.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 8 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 11 version 21H2 | Affected
| Fixed in– |
AI-suggested
An official fix is available from Microsoft for this vulnerability. It is recommended to apply the provided security updates to Windows 11 version 21H2 (build 10.0.22000.0) promptly to mitigate the risk. No additional mitigation steps are indicated beyond applying the official patch.
Description
Windows Scripting Engine Security Feature Bypass Vulnerability