{"id":"CVE-2025-25199","aliases":["GHSA-29c6-3hcj-89cf","GO-2025-3461"],"url":"https://o3.security/vulnerability/CVE-2025-25199","summary":"BCryptGenerateSymmetricKey memory leak","details":"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.","published":"2025-02-12T17:49:58.397Z","modified":"2026-08-12T03:51:21.715828741Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.01414,"percentile":0.70668,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/microsoft/go-crypto-winnative","fixedVersion":"0.0.0-20250211154640-f49c8e1379ea"}],"fix":{"url":"https://github.com/microsoft/go-crypto-winnative/commit/f49c8e1379ea4b147d5bff1b3be5b0ff45792e41","label":"microsoft/go-crypto-winnative@f49c8e1"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25199.json"},{"type":"ADVISORY","url":"https://github.com/microsoft/go-crypto-winnative/security/advisories/GHSA-29c6-3hcj-89cf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-25199"},{"type":"FIX","url":"https://github.com/microsoft/go-crypto-winnative/commit/f49c8e1379ea4b147d5bff1b3be5b0ff45792e41"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:21.715828741Z"}}