CVE-2023-36399: Windows Storage Elevation of Privilege Vulnerability
CVE-2023-36399 is an elevation of privilege vulnerability in Windows Storage, rated Important by Microsoft, with a CVSS 3.1 base score of 7.1 (High). An attacker can exploit it by an attacker with local access, with low privileges and without user interaction. Microsoft has not reported exploitation in the wild and rates exploitation as more likely. The EPSS model estimates a 8.34% probability of exploitation activity in the next 30 days, higher than 95% of all scored vulnerabilities. Microsoft released the fix on 14 November 2023 in the November 2023 Patch Tuesday, delivered through 5 security updates (KB5032202, KB5032198, KB5032304, KB5032192 and more). It affects 9 products in 1 product family (Windows).
Key facts
- CVE ID
- CVE-2023-36399
- Severity
- High CVSS 7.1
- Microsoft severity
- Important
- Impact
- Elevation of Privilege
- Exploited in the wild
- No
- Publicly disclosed
- No
- Exploitation likelihood
- More Likely
- Weakness
- CWE-59
- EPSS
- 8.34% (percentile 95%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- November 2023 Patch Tuesday
- Product families
- Windows
CVSS score and vector
Microsoft scores CVE-2023-36399 at 7.1 (temporal 6.2) using CVSS 3.1. Vector: 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
| Metric | Value |
|---|---|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality impact | None |
| Integrity impact | High |
| Availability impact | High |
| Exploit code maturity | Unproven |
| Remediation level | Official fix |
| Report confidence | Confirmed |
Frequently asked questions (Microsoft)
According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N) but have major impact on integrity (I:H) and on availability (A:H). What does that mean for this vulnerability?
This vulnerability does not allow disclosure of any confidential information, but could allow an attacker to delete data that could include data that results in the service being unavailable.
What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Affected products (9)
Windows
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Windows Server 2022, 23H2 Edition (Server Core installation) | KB5032202 | Security Update | 10.0.25398.531 | Yes |
| Windows Server 2022 | KB5032198 KB5032304 | Security Update SecurityHotpatchUpdate | 10.0.20348.2113 10.0.20348.2091 | Yes No |
| Windows Server 2022 (Server Core installation) | KB5032198 KB5032304 | Security Update SecurityHotpatchUpdate | 10.0.20348.2113 10.0.20348.2091 | Yes No |
| Windows 11 version 21H2 for x64-based Systems | KB5032192 | Security Update | 10.0.22000.2600 | Yes |
| Windows 11 version 21H2 for ARM64-based Systems | KB5032192 | Security Update | 10.0.22000.2600 | Yes |
| Windows 11 Version 22H2 for ARM64-based Systems | KB5032190 | Security Update | 10.0.22621.2715 | Yes |
| Windows 11 Version 22H2 for x64-based Systems | KB5032190 | Security Update | 10.0.22621.2715 | Yes |
| Windows 11 Version 23H2 for x64-based Systems | ||||
| Windows 11 Version 23H2 for ARM64-based Systems |
Security updates (5)
NIST NVD data
- NVD status
- Modified
- NVD CVSS
- 7.1 (HIGH)
- NVD weakness
- CWE-59
- Published to NVD
- NVD last modified
Affected configurations (CPE)
| Product | Vulnerable versions |
|---|---|
| windows 11 21h2 (arm64) | before 10.0.22000.2600 |
| windows 11 21h2 (x64) | before 10.0.22000.2600 |
| windows 11 22h2 (arm64) | before 10.0.22621.2715 |
| windows 11 22h2 (x64) | before 10.0.22621.2715 |
| windows 11 23h2 (arm64) | before 10.0.22621.2715 |
| windows 11 23h2 (x64) | before 10.0.22621.2715 |
| windows server 2022 | all listed versions |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36399 (Patch, Vendor Advisory)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36399 (Patch, Vendor Advisory)
Acknowledgments
- Microsoft Security Response Center
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. |