{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-76499", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2026-08-19T12:02:03.641Z", "datePublished": "2026-10-07T16:17:25.662Z", "dateUpdated": "2026-10-07T17:48:13.369Z" }, "containers": { "cna": { "title": "Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Neutralization Vulnerabilities", "metrics": [ { "format": "cvssV3_1", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" } } ], "descriptions": [ { "lang": "en", "value": "As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Application Policy Infrastructure Controller (APIC) engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76499 are related to improper neutralization issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.\r\n " } ], "references": [ { "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-apic-UOXWtfh", "name": "cisco-sa-hardening-apic-UOXWtfh" } ], "exploits": [ { "lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory." } ], "source": { "advisory": "cisco-sa-hardening-apic-UOXWtfh", "discovery": "INTERNAL", "defects": [ "CSCwu66689" ] }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Neutralization", "type": "cwe", "cweId": "CWE-707" } ] } ], "affected": [ { "vendor": "Cisco", "product": "Cisco Application Policy Infrastructure Controller (APIC)", "versions": [ { "version": "5.2(1g)", "status": "affected" }, { "version": "5.2(2e)", "status": "affected" }, { "version": "5.2(2f)", "status": "affected" }, { "version": "5.2(2g)", "status": "affected" }, { "version": "5.2(2h)", "status": "affected" }, { "version": "5.2(3f)", "status": "affected" }, { "version": "5.2(3e)", "status": "affected" }, { "version": "5.2(3g)", "status": "affected" }, { "version": "5.2(4d)", "status": "affected" }, { "version": "5.2(4e)", "status": "affected" }, { "version": "5.2(5d)", "status": "affected" }, { "version": "5.2(5c)", "status": "affected" }, { "version": "6.0(1g)", "status": "affected" }, { "version": "5.2(5e)", "status": "affected" }, { "version": "5.2(4f)", "status": "affected" }, { "version": "5.2(6e)", "status": "affected" }, { "version": "6.0(1j)", "status": "affected" }, { "version": "5.2(6g)", "status": "affected" }, { "version": "5.2(7f)", "status": "affected" }, { "version": "5.2(7g)", "status": "affected" }, { "version": "6.0(2h)", "status": "affected" }, { "version": "5.2(6h)", "status": "affected" }, { "version": "5.2(4h)", "status": "affected" }, { "version": "5.2(8d)", "status": "affected" }, { "version": "6.0(2j)", "status": "affected" }, { "version": "5.2(8e)", "status": "affected" }, { "version": "6.0(3d)", "status": "affected" }, { "version": "6.0(3e)", "status": "affected" }, { "version": "5.2(8f)", "status": "affected" }, { "version": "5.2(8g)", "status": "affected" }, { "version": "5.3(1d)", "status": "affected" }, { "version": "5.2(8h)", "status": "affected" }, { "version": "6.0(4c)", "status": "affected" }, { "version": "5.3(2a)", "status": "affected" }, { "version": "5.2(8i)", "status": "affected" }, { "version": "6.0(5h)", "status": "affected" }, { "version": "5.3(2b)", "status": "affected" }, { "version": "6.0(3g)", "status": "affected" }, { "version": "6.0(5j)", "status": "affected" }, { "version": "5.3(2c)", "status": "affected" }, { "version": "6.0(6c)", "status": "affected" }, { "version": "6.1(1f)", "status": "affected" }, { "version": "6.0(7e)", "status": "affected" }, { "version": "5.3(2d)", "status": "affected" }, { "version": "6.0(8d)", "status": "affected" }, { "version": "6.0(8e)", "status": "affected" }, { "version": "6.1(2f)", "status": "affected" }, { "version": "6.0(8f)", "status": "affected" }, { "version": "5.3(2e)", "status": "affected" }, { "version": "6.1(2g)", "status": "affected" }, { "version": "5.3(2f)", "status": "affected" }, { "version": "6.0(9c)", "status": "affected" }, { "version": "6.1(3f)", "status": "affected" }, { "version": "6.0(9d)", "status": "affected" }, { "version": "6.0(6g)", "status": "affected" }, { "version": "6.0(6h)", "status": "affected" }, { "version": "6.0(8h)", "status": "affected" }, { "version": "6.1(3g)", "status": "affected" }, { "version": "6.1(4h)", "status": "affected" }, { "version": "6.0(9e)", "status": "affected" }, { "version": "6.1(5e)", "status": "affected" }, { "version": "6.2(1f)", "status": "affected" }, { "version": "6.2(1g)", "status": "affected" }, { "version": "6.0(9f)", "status": "affected" }, { "version": "6.2(2e)", "status": "affected" } ], "defaultStatus": "unknown" } ], "providerMetadata": { "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-10-07T16:17:25.662Z" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-07T17:47:36.467311Z", "id": "CVE-2026-76499", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-07T17:48:13.369Z" } } ] } }