CVE-2025-29828: Windows Schannel Remote Code Execution Vulnerability
Description
Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to execute code over a network.
Classification
CVE ID: CVE-2025-29828
CVSS Base Severity: HIGH
CVSS Base Score: 8.1
CVSS 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
Affected Products
Vendor: Microsoft
Product: Windows Server 2022, Windows 11 version 22H2, Windows Server 2025 (Server Core installation), Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2022, 23H2 Edition (Server Core installation), Windows 11 Version 24H2, Windows Server 2025
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.12% (probability of being exploited)
EPSS Percentile: 31.6% (scored less or equal to compared to others)
EPSS Date: 2025-06-18 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: none
SSVC Technical Impact: total
SSVC Automatable: false
References
https://nvd.nist.gov/vuln/detail/CVE-2025-29828https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29828