Vulnerability · Published Jun 10, 2025 · Assigned by microsoft
CVE-2025-29828Windows Schannel Remote Code Execution Vulnerability
High 8.1
In plain English
A high-severity memory leak in Windows 11 version 22H2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)1.3%top 30.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to execute code over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.5472 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – before 10.0.22631.5472 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – before 10.0.22631.5472 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – before 10.0.26100.4349 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.3807 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – before 10.0.25398.1665 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – before 10.0.26100.4349 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – before 10.0.26100.4349 |
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Windows Schannel Remote Code Execution Vulnerability vendor-advisory, patch