CVE-2024-38241: Kernel Streaming Service Driver Elevation of Privilege Vulnerability
CVE-2024-38241 is an elevation of privilege vulnerability in Kernel Streaming Service Driver, rated Important by Microsoft, with a CVSS 3.1 base score of 7.8 (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 6.02% probability of exploitation activity in the next 30 days, higher than 93% of all scored vulnerabilities. Microsoft released the fix on 9 September 2024 in the September 2024 Patch Tuesday, delivered through 10 security updates (KB5043050, KB5042881, KB5042880, KB5043067 and more). It affects 27 products in 1 product family (Windows).
Key facts
- CVE ID
- CVE-2024-38241
- Severity
- High CVSS 7.8
- Microsoft severity
- Important
- Impact
- Elevation of Privilege
- Exploited in the wild
- No
- Publicly disclosed
- No
- Exploitation likelihood
- More Likely
- Weakness
- CWE-20
- EPSS
- 6.02% (percentile 93%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- September 2024 Patch Tuesday
- Product families
- Windows
CVSS score and vector
Microsoft scores CVE-2024-38241 at 7.8 (temporal 6.8) using CVSS 3.1. Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 | High |
| Integrity impact | High |
| Availability impact | High |
| Exploit code maturity | Unproven |
| Remediation level | Official fix |
| Report confidence | Confirmed |
Frequently asked questions (Microsoft)
Windows 11, version 24H2 is not generally available yet. Why are there updates for this version of Windows listed in the Security Updates table?
The new Copilot+ devices that are now publicly available come with Windows 11, version 24H2 installed. Customers with these devices need to know about any vulnerabilities that affect their machine and to install the updates if they are not receiving automatic updates. Note that the general availability date for Windows 11, version 24H2 is scheduled for later this year.
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 (27)
Windows
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Windows 10 Version 1809 for 32-bit Systems | KB5043050 | Security Update | 10.0.17763.6293 | Yes |
| Windows 10 Version 1809 for x64-based Systems | KB5043050 | Security Update | 10.0.17763.6293 | Yes |
| Windows Server 2019 | KB5043050 | Security Update | 10.0.17763.6293 | Yes |
| Windows Server 2019 (Server Core installation) | KB5043050 | Security Update | 10.0.17763.6293 | Yes |
| Windows Server 2022 | KB5042881 KB5042880 | Security Update SecurityHotpatchUpdate | 10.0.20348.2700 10.0.20348.2695 | Yes Yes |
| Windows Server 2022 (Server Core installation) | KB5042881 KB5042880 | Security Update SecurityHotpatchUpdate | 10.0.20348.2700 10.0.20348.2695 | Yes Yes |
| Windows 11 version 21H2 for x64-based Systems | KB5043067 | Security Update | 10.0.22000.3197 | Yes |
| Windows 11 version 21H2 for ARM64-based Systems | KB5043067 | Security Update | 10.0.22000.3197 | Yes |
| Windows 10 Version 21H2 for 32-bit Systems | KB5043064 | Security Update | 10.0.19044.4894 | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5043064 | Security Update | 10.0.19044.4894 | Yes |
| Windows 10 Version 21H2 for x64-based Systems | KB5043064 | Security Update | 10.0.19044.4894 | Yes |
| Windows 11 Version 22H2 for ARM64-based Systems | KB5043076 | Security Update | 10.0.22621.4169 | Yes |
| Windows 11 Version 22H2 for x64-based Systems | KB5043076 | Security Update | 10.0.22621.4169 | Yes |
| Windows 10 Version 22H2 for x64-based Systems | ||||
| Windows 10 Version 22H2 for ARM64-based Systems | ||||
| Windows 10 Version 22H2 for 32-bit Systems | ||||
| Windows 11 Version 23H2 for ARM64-based Systems | ||||
| Windows 11 Version 23H2 for x64-based Systems | ||||
| Windows Server 2022, 23H2 Edition (Server Core installation) | KB5043055 | Security Update | 10.0.25398.1128 | Yes |
| Windows 11 Version 24H2 for ARM64-based Systems | KB5043080 | Security Update | 10.0.26100.1742 | Yes |
| Windows 11 Version 24H2 for x64-based Systems | KB5043080 | Security Update | 10.0.26100.1742 | Yes |
| Windows 10 for 32-bit Systems | KB5043083 | Security Update | 10.0.10240.20766 | Yes |
| Windows 10 for x64-based Systems | KB5043083 | Security Update | 10.0.10240.20766 | Yes |
| Windows 10 Version 1607 for 32-bit Systems | KB5043051 | Security Update | 10.0.14393.7336 | Yes |
| Windows 10 Version 1607 for x64-based Systems | KB5043051 | Security Update | 10.0.14393.7336 | Yes |
| Windows Server 2016 | KB5043051 | Security Update | 10.0.14393.7336 | Yes |
| Windows Server 2016 (Server Core installation) | KB5043051 | Security Update | 10.0.14393.7336 | Yes |
Security updates (10)
NIST NVD data
- NVD status
- Analyzed
- NVD CVSS
- 7.8 (HIGH)
- NVD weakness
- CWE-20
- Published to NVD
- NVD last modified
Affected configurations (CPE)
| Product | Vulnerable versions |
|---|---|
| windows 10 1507 (x64) | before 10.0.10240.20766 |
| windows 10 1507 (x86) | before 10.0.10240.20766 |
| windows 10 1607 (x64) | before 10.0.14393.7336 |
| windows 10 1607 (x86) | before 10.0.14393.7336 |
| windows 10 1809 | before 10.0.17763.6293 |
| windows 10 21h2 | before 10.0.19044.4894 |
| windows 10 22h2 (arm64) | before 10.0.19045.4894 |
| windows 10 22h2 (x64) | before 10.0.19045.4894 |
| windows 10 22h2 (x86) | before 10.0.19045.4894 |
| windows 11 21h2 | before 10.0.22000.3197 |
| windows 11 22h2 | before 10.0.22621.4169 |
| windows 11 23h2 (arm64) | before 10.0.22621.4169 |
| windows 11 23h2 (x64) | before 10.0.22631.4169 |
| windows 11 24h2 (arm64) | before 10.0.26100.1742 |
| windows 11 24h2 (x64) | before 10.0.26100.1742 |
| windows server 2016 | before 10.0.14393.7336 |
| windows server 2019 | before 10.0.17763.6293 |
| windows server 2022 | before 10.0.20348.2700 |
| windows server 2022 23h2 | before 10.0.25398.1128 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38241 (Patch, Vendor Advisory)
Acknowledgments
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. |