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CVE-2026-76531

External file access in Cisco software (low privileges)

CVSS 3.1
9.9 critical
EPSS
—
Published
·
Modified
Analyze CVE-2026-76531 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

Cisco grouped CVE-2026-76531 with internally found issues in which files or directories are accessible to external parties (CWE-552). A remote attacker with low privileges can reach the flaw over the network without user interaction. Successful exploitation can disclose, change, and disrupt data beyond the vulnerable component. Cisco has not named the affected product or builds.

What to do: Apply Cisco's software hardening update for CVE-2026-76531. No fixed version or workaround is named.

Description · NVD

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.

Weakness
CWE-552
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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