CVE-2026-76530
CVE-2026-76530 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-647.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-647
- Published:
- Last modified:
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-2026-76530 are related to use of non-canonical URL paths for authorization decisions and are grouped under the Common Weakness Enumeration (CWE) CWE-647.
Frequently asked questions
- What is CVE-2026-76530?
- 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-2026-76530 are related to use of non-canonical URL paths for authorization decisions and are grouped under the Common Weakness Enumeration (CWE) CWE-647.
- How severe is CVE-2026-76530?
- CVE-2026-76530 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-76530 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-76530?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-76530 published?
- CVE-2026-76530 was published on 2026-10-21 and last updated on 2026-10-22.
References
Other CWE-647 vulnerabilities
- CVE-2026-80515 — High (CVSS 8.9): In Eclipse Arrowhead versions from 5.0.0 to 5.2.1 the management-authorization gate that protects every /…/mgmt/……
- CVE-2022-43939 — High (CVSS 8.6): Hitachi Vantara Pentaho Business Analytics Server versions before 9.4.0.1 and 9.3.0.2, including 8.3.x contain security…
- CVE-2026-59731 — High (CVSS 8.2): Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially…
- CVE-2026-62685 — High (CVSS 8.1): File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a…
- CVE-2025-64500 — High (CVSS 7.3): Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Symfony's…
- CVE-2025-9909 — Medium (CVSS 6.7): A flaw was found in the Red Hat Ansible Automation Platform Gateway route creation component. This vulnerability allows…