{"id":"CVE-2026-76531","published":"2026-10-21T23:17:30.117","lastModified":"2026-10-22T16:57:10.180","description":"As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76531 are related to files or directories accessible to external parties and are grouped under the Common Weakness Enumeration (CWE) CWE-552.","cvssScore":9.9,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-552"],"vendors":[],"products":[],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-1011","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows external parties to access files or directories that should be restricted, due to improper access control in Cisco software (CWE-552). This could enable unauthorized data exposure or further compromise.","exploitability":"Exploitation requires low privileges (PR:L) and no user interaction, but the exact method is not disclosed; attackers likely need network access and knowledge of vulnerable paths.","blast_radius":"If exploited, it could lead to full system compromise (C:H/I:H/A:H), including data theft, unauthorized modification, or service disruption across affected systems.","remediation":"Apply the Cisco software hardening release that addresses CVE-2026-76531; no specific version is named in the description, so follow Cisco’s official security advisory for the exact patch level or apply recommended configuration controls immediately.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["cwe-552","access-control","information-disclosure","hardening","cisco"],"model":"garnet-coder","analyzedAt":"2026-10-24T08:50:23.490Z"}}