CVE-2025-25199 is a memory leak vulnerability in the go-crypto-winnative Go crypto backend for Windows, specifically affecting the Cryptography API: Next Generation (CNG) when TLS1PRF is called without releasing the key handle. This issue is present in versions of the Microsoft build of Go prior to 1.23.6-2 and 1.22.12-2, and the github.com/microsoft/go-crypto-winnative package before pseudoversion 0.0.0-20250211154640-f49c8e1379ea. With a CVSS score of 7.5 (High), this vulnerability has a network attack vector, low attack complexity, and can lead to high availability impact due to resource exhaustion. There is no known active exploitation, public exploit code, or Metasploit/Nuclei modules available, though it has garnered significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Microsoft | Go-Crypto-Winnative | < 0.0.0-20250211154640-f49c8e1379ea, < 1.22.12-2, < 1.23.6-2CNA affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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