{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18668", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-08-03T14:46:44.052Z", "datePublished": "2026-11-08T18:04:43.747Z", "dateUpdated": "2026-11-08T18:04:43.747Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-11-08T18:04:43.747Z"}, "title": "Protection Mechanism Failure vulnerability affects IBM Sterling File Gateway", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-693", "description": "CWE-693 Protection Mechanism Failure", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "Sterling File Gateway", "versions": [{"status": "affected", "version": "6.2.1.0", "lessThanOrEqual": "6.2.1.2_1, 6.2.2.0 - 6.2.2.1_1", "versionType": "semver"}], "cpes": ["cpe:2.3:a:ibm:sterling_file_gateway:6.2.1.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:sterling_file_gateway:6.2.1.2_1:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1 and\u00a0 6.2.2.0 - 6.2.2.1_1 could allow a remote attacker to perform protocol downgrade attacks due to a security misconfiguration.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1 and&nbsp; 6.2.2.0 - 6.2.2.1_1 could allow a remote attacker to perform protocol downgrade attacks due to a security misconfiguration.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7294084", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"}}], "solutions": [{"lang": "en", "value": "ProductVersionAPARRemediation & Fix\u00a0IBM Sterling File Gateway\u00a06.2.1.0 - 6.2.1.2_1IT49752\u00a0Apply 6.2.1.3\u00a0\u00a0IBM Sterling File Gateway\u00a06.2.2.0 - 6.2.2.1_1IT49752\u00a0Apply 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\u00a0 Fix Central http://www-933.ibm.com/support/fixcentral/swg/selectFixes .\u00a0\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", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div><table><tbody><tr><td>Product</td><td>Version</td><td>APAR</td><td>Remediation &amp; Fix</td></tr><tr><td>\u00a0IBM Sterling File Gateway\u00a0</td><td>6.2.1.0 - 6.2.1.2_1</td><td>IT49752\u00a0</td><td>Apply 6.2.1.3\u00a0</td></tr><tr><td>\u00a0IBM Sterling File Gateway\u00a0</td><td>6.2.2.0 - 6.2.2.1_1</td><td>IT49752\u00a0</td><td>Apply 6.2.2.2</td></tr></tbody></table></div><p></p><p>The IIM versions of 6.2.1.3 and 6.2.2.2 are available on\u00a0<a href=\"http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&amp;product=ibm/Other+software/Sterling+B2B+Integrator&amp;release=All&amp;platform=All&amp;function=all\" rel=\"noopener noreferrer nofollow\">Fix Central</a>.\u00a0</p><p>The container versions of 6.2.1.3 and 6.2.2.2 are available in IBM Entitled Registry</p><ul><li>cp.icr.io/cp/ibm-b2bi for IBM Sterling File Gateway\u00a0</li></ul>"}]}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:ibm:sterling_file_gateway:6.2.1.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:sterling_file_gateway:6.2.1.2_1:*:*:*:*:*:*:*"], "product": "Sterling File Gateway", "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"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1 and\u00a0 6.2.2.0 - 6.2.2.1_1 could allow a remote attacker to perform protocol downgrade attacks due to a security misconfiguration."}], "id": "CVE-2026-18668", "lastModified": "2026-11-08T18:17:04.593", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-11-08T18:17:04.483", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7294084"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-693"}], "source": "psirt@us.ibm.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.2.1.0,6.2.1.2_1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.2.2.0,6.2.2.1_1]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Sterling File Gateway", "source": "cna", "vendor": "IBM"}, "product": "sterling_file_gateway", "vendor": "ibm"}], "created": "2026-11-08T20:00:14.401114+00:00", "updated": "2026-11-08T20:30:14.598727+00:00", "vendors": ["ibm", "ibm$PRODUCT$sterling_file_gateway"]}