{"affected":[{"product":"Sterling File Gateway","source":"CNA: ibm","vendor":"IBM","versions":[{"lessThanOrEqual":"6.2.1.2_1, 6.2.2.0 - 6.2.2.1_1","status":"affected","version":"6.2.1.0","versionType":"semver"}]}],"cveId":"CVE-2026-18668","cwes":["CWE-693"],"description":"IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1 and  6.2.2.0 - 6.2.2.1_1 could allow a remote attacker to perform protocol downgrade attacks due to a security misconfiguration.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":6.5,"severity":"medium","source":"CNA: ibm","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1794161083747,"publishedAt":1794161083747,"references":[{"source":"CNA: ibm","tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7294084"}],"remediation":[{"kind":"fix","source":"CNA: ibm","text":"ProductVersionAPARRemediation & Fix IBM Sterling File Gateway 6.2.1.0 - 6.2.1.2_1IT49752 Apply 6.2.1.3  IBM Sterling File Gateway 6.2.2.0 - 6.2.2.1_1IT49752 Apply 6.2.2.2\n\n\n\n\n\n\n\nThe IIM versions of 6.2.1.3 and 6.2.2.2 are available on  Fix Central http://www-933.ibm.com/support/fixcentral/swg/selectFixes . \n\n\n\nThe container versions of 6.2.1.3 and 6.2.2.2 are available in IBM Entitled Registry\n\n  *  cp.icr.io/cp/ibm-b2bi for IBM Sterling File Gateway"},{"kind":"fix","source":"CNA: ibm","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.ibm.com/support/pages/node/7294084"}],"revision":"56e516641c2f2e2d1f2243a5dd0b98f162b1613bc3846893718d6d723a49fa35","sources":[{"modifiedAt":1794161083747,"name":"CNA: ibm","retrievedAt":1794164924955,"url":"https://www.cve.org/CVERecord?id=CVE-2026-18668"}],"ssvc":null,"status":"published","title":"Protection Mechanism Failure vulnerability affects IBM Sterling File Gateway","updatedAt":1794164924955}