# CVE-2025-25199

## Summary

- **CVE ID:** CVE-2025-25199
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-401
- **Published:** Feb 12, 2025
- **Last Modified:** Mar 12, 2026

## Description

go-crypto-winnative Go crypto backend for Windows using Cryptography API: Next Generation (CNG). Prior to commit f49c8e1379ea4b147d5bff1b3be5b0ff45792e41, calls to `cng.TLS1PRF` don't release the key handle, producing a small memory leak every time. Commit f49c8e1379ea4b147d5bff1b3be5b0ff45792e41 contains a fix for the issue. The fix is included in versions 1.23.6-2 and 1.22.12-2 of the Microsoft build of go, as well as in the pseudoversion 0.0.0-20250211154640-f49c8e1379ea of the `github.com/microsoft/go-crypto-winnative` Go package.

## Affected Products

- microsoft — go-crypto-winnative (< 1.23.6-2)
- microsoft — go-crypto-winnative (< 1.22.12-2)
- microsoft — go-crypto-winnative (< 0.0.0-20250211154640-f49c8e1379ea)

## References

- [CNA](https://github.com/microsoft/go-crypto-winnative/security/advisories/GHSA-29c6-3hcj-89cf)
- [CNA](https://github.com/microsoft/go-crypto-winnative/commit/f49c8e1379ea4b147d5bff1b3be5b0ff45792e41)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.44%
- **EPSS Percentile:** 71.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._