{"id":"CVE-2026-76500","state":"PUBLISHED","title":"Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Control of a Resource Through its Lifetime Vulnerabilities","description":"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. &nbsp;\r\n\r\nThe vulnerabilities tracked by CVE-2026-76500 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.","publishedAt":"2026-10-07T16:17:34.991Z","updatedAt":"2026-10-08T15:31:11.161Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Application Policy Infrastructure Controller (APIC)"],"affected":[{"vendor":"Cisco","product":"Cisco Application Policy Infrastructure Controller (APIC)","defaultStatus":"unknown","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"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-apic-UOXWtfh"],"weaknesses":["CWE-664"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/76xxx/CVE-2026-76500.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76500","state":"PUBLISHED","datePublished":"2026-10-07T16:17:34.991Z","dateUpdated":"2026-10-08T15:31:11.161Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2026-08-19T12:02:03.641Z"},"containers":{"cna":{"title":"Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Control of a Resource Through its Lifetime Vulnerabilities","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. &nbsp;\r\n\r\nThe vulnerabilities tracked by CVE-2026-76500 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664."}],"affected":[{"vendor":"Cisco","product":"Cisco Application Policy Infrastructure Controller (APIC)","defaultStatus":"unknown","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"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-apic-UOXWtfh","name":"cisco-sa-hardening-apic-UOXWtfh"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-664","lang":"en","description":"Improper Control of a Resource Through its Lifetime","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2026-10-07T16:17:34.991Z"},"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":["CSCwu76893"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-08T15:31:00.483068Z","id":"CVE-2026-76500","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T15:31:11.161Z"}}]}}}