VDB
CVE-2021-38634
CVE-2021-38634
PUBLISHED
CVSS 7.099999904632568 HIGH
Microsoft Windows Update Client Elevation of Privilege Vulnerability
EPSS 0.24% · 47.6th percentile
Risk Scores
CVSS 3.1
7.099999904632568
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C
EPSS Score
0.24%
47.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2016 | 10.0.0 |
| microsoft | windows_server_2019 | |
| Microsoft | Windows 10 Version 2004 | 10.0.0 |
| Microsoft | Windows 10 Version 1507 | 10.0.0 |
| Microsoft | Windows Server version 2004 | 10.0.0 |
| Microsoft | Windows Server version 20H2 | 10.0.0 |
| microsoft | windows_server_2022 | |
| microsoft | windows_server_2016 | 2004, * |
| Microsoft | Windows Server 2019 | 10.0.0 |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 |
| Microsoft | Windows 10 Version 1909 | 10.0.0 |
| microsoft | windows_10 | 20h2, 1809, 2004 |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 |
| Microsoft | Windows 10 Version 1809 | 10.0.0 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 |
| Microsoft | Windows 10 Version 1607 | 10.0.0 |
| Microsoft | Windows Server 2022 | 10.0.0 |
Exploit Intelligence
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38634 (circl)
- https://www.zerodayinitiative.com/advisories/ZDI-21-1075/ (circl)
- EXPL_MAL_MalDoc_OBFUSCT_MHTML_Sep21_1_RID32E2.yar (github-yara)
- EXPL_MAL_MalDoc_OBFUSCT_MHTML_Sep21_1_RID32E2.yar (github-yara)
- EXPL_MAL_MalDoc_OBFUSCT_MHTML_Sep21_1_RID32E2.yar (github-yara)
- EXPL_MAL_MalDoc_OBFUSCT_MHTML_Sep21_1_RID32E2.yar (github-yara)
- EXPL_XML_Encoded_CVE_2021_40444.yar (github-yara)
- EXPL_XML_Encoded_CVE_2021_40444.yar (github-yara)
- EXPL_XML_Encoded_CVE_2021_40444.yar (github-yara)
- EXPL_XML_Encoded_CVE_2021_40444.yar (github-yara)
…and 52 more exploits
Timeline
- Jul 2, 2021 PoC Published
- Sep 15, 2021 CVE Published
- Sep 16, 2021 EPSS Score
- Sep 23, 2021 PoC Published
- Sep 27, 2021 EPSS Score
- Nov 12, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 7, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Jun 30, 2022 EPSS Score
- Aug 28, 2022 EPSS Score
References
- https://msrc.microsoft.com/update-guide/ advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38634 url
- https://www.zerodayinitiative.com/advisories/ZDI-21-1075/ url
- https://nvd.nist.gov/vuln/detail/CVE-2021-38634 advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1075 url