{"id":"CVE-2016-6886","aliases":["EUVD-2016-7771","GHSA-j6ff-73m6-rqcf"],"status":"published","title":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of...","description":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01693,"percentile":0.77266,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-320"],"published":"2017-01-13T16:00:00Z","modified":"2026-06-17T00:51:56Z","products":[{"vendor":"matrixssl","product":"matrixssl"}],"references":[{"url":"http://www.matrixssl.org/blog/releases/matrixssl_3_8_4","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://www.securityfocus.com/bid/92604","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-6886"},{"url":"https://github.com/advisories/GHSA-j6ff-73m6-rqcf"}],"sources":{"cve":[{"id":"CVE-2016-6886","description":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.","status":"published","published":"2017-01-13T16:00:00Z","modified":"2024-08-06T01:43:38.565Z","updated_at":"2026-11-02T14:33:34.443637Z"}],"euvd":[{"id":"EUVD-2016-7771","description":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.","status":"published","published":"2017-01-13T16:00:00Z","modified":"2024-08-06T01:43:38Z","updated_at":"2026-11-03T02:22:35.048987Z"}],"ghsa":[{"id":"GHSA-j6ff-73m6-rqcf","title":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of...","description":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.","status":"published","published":"2022-05-17T03:04:49Z","modified":"2023-01-27T05:06:34Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:42:56.687968Z"}],"nvd":[{"id":"CVE-2016-6886","description":"The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.","status":"published","published":"2017-01-13T16:59:00.247Z","modified":"2026-06-17T00:51:56.203Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-320"],"updated_at":"2026-11-02T14:03:33.686843Z"}]}}