CVE-2025-49733
published 2025-07-08CVE-2025-49733: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
PriorityP345high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.27%
18.9th percentile
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
Affected
30 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1809 | < 10.0.17763.7558 | 10.0.17763.7558 |
| microsoft | windows_10_21h2 | < 10.0.19044.6093 | 10.0.19044.6093 |
| microsoft | windows_10_22h2 | < 10.0.19045.6093 | 10.0.19045.6093 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.7558 | 10.0.17763.7558 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.6093 | 10.0.19044.6093 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.6093 | 10.0.19045.6093 |
| microsoft | windows_11_22h2 | < 10.0.22621.5624 | 10.0.22621.5624 |
| microsoft | windows_11_23h2 | < 10.0.22631.5624 | 10.0.22631.5624 |
| microsoft | windows_11_24h2 | < 10.0.26100.4652 | 10.0.26100.4652 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.5624 | 10.0.22621.5624 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.5624 | 10.0.22631.5624 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.5624 | 10.0.22631.5624 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.4652 | 10.0.26100.4652 |
| microsoft | windows_server_2019 | < 10.0.17763.7558 | 10.0.17763.7558 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.7558 | 10.0.17763.7558 |
| microsoft | windows_server_2022 | < 10.0.20348.3932 | 10.0.20348.3932 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.3932 | 10.0.20348.3932 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.1732 | 10.0.25398.1732 |
| microsoft | windows_server_2025 | < 10.0.26100.4652 | 10.0.26100.4652 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.4652 | 10.0.26100.4652 |
| msrc | windows_10_version_1809 | — | — |
| msrc | windows_10_version_21h2 | — | — |
| msrc | windows_10_version_22h2 | — | — |
| msrc | windows_11_version_22h2 | — | — |
| msrc | windows_11_version_23h2 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc7.8HIGH
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GHSA
GHSA-v257-crc8-5wv7: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally
ghsa_unreviewed·2025-07-08
CVE-2025-49733 [HIGH] CWE-416 GHSA-v257-crc8-5wv7: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
Microsoft
Win32k Elevation of Privilege Vulnerability
vendor_msrc·2025-07-08·CVSS 7.8
CVE-2025-49733 [HIGH] CWE-416 Win32k Elevation of Privilege Vulnerability
Win32k Elevation of Privilege Vulnerability
Description: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
FAQ: What privileges could be gained by an attacker who successfully exploited the vulnerability?
A local, authenticated attacker could gain elevated local system or administrator privileges through a vulnerability in the Win32k.sys driver.
Windows Win32K - ICOMP: Windows Win32K - ICOMP
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062557
Reference: https://support.microsoft.com/help/5062557
Reference: https://catalog.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-07-08
Published