What is CVE-2025-25199?

CVE-2025-25199 is a high-severity vulnerability in Microsoft Go-crypto-winnative, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2025-02-12.

How severe is CVE-2025-25199?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Microsoft Go-crypto-winnative

CVE-2025-25199

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 e…

EPSS: 0.013 (66.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Microsoft Go-crypto-winnative — versions < 1.23.6-2, < 1.22.12-2, < 0.0.0-20250211154640-f49c8e1379ea

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-25199?: CVE-2025-25199 is a high-severity vulnerability in Microsoft Go-crypto-winnative, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2025-02-12.
How severe is CVE-2025-25199?: High severity. CVSS v3 base score is 7.5 out of 10.