{"id":"CVE-2026-4942","aliases":["EUVD-2026-45292","GHSA-cffx-9q2g-r6hp"],"status":"published","title":"IBM i is Affected by Algorithm Downgrade in Transport Layer Security []","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0043,"percentile":0.37538,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-757"],"published":"2026-07-17T19:32:02Z","modified":"2026-10-24T20:10:00Z","products":[{"vendor":"ibm","product":"i"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7278992","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4942"},{"url":"https://github.com/advisories/GHSA-cffx-9q2g-r6hp"}],"sources":{"cve":[{"id":"CVE-2026-4942","title":"IBM i is Affected by Algorithm Downgrade in Transport Layer Security []","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.","status":"published","published":"2026-07-17T19:32:02.44Z","modified":"2026-07-20T13:52:49.123Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-757"],"updated_at":"2026-11-02T14:19:58.944663Z"}],"euvd":[{"id":"EUVD-2026-45292","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.","status":"published","published":"2026-07-17T19:32:02Z","modified":"2026-07-20T13:52:49Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:19:49.035342Z"}],"ghsa":[{"id":"GHSA-cffx-9q2g-r6hp","title":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message...","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.","status":"published","published":"2026-07-17T21:31:44Z","modified":"2026-07-17T21:31:52Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-757"],"updated_at":"2026-11-02T15:09:35.806108Z"}],"nvd":[{"id":"CVE-2026-4942","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.","status":"published","published":"2026-07-17T20:17:23.56Z","modified":"2026-10-24T20:10:00.137Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-757"],"updated_at":"2026-11-02T14:12:30.250437Z"}]}}