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CVE-2026-20343

Cisco Secure Firewall Management Center Software Information Disclosure and Disk Denial of Service Vulnerability PUBLISHED

Description (CNA)

A vulnerability in a critical API for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to download sensitive files and use unbounded disk space. This vulnerability exists because a critical API lacks authentication. An attacker could exploit this vulnerability by repeatedly invoking the API. A successful exploit could allow the attacker to download sensitive files that should be restricted and consume disk space so the device could become unresponsive, causing a DoS condition.

Affected (CNA)

Vendor / productVersions
Cisco / Cisco Secure Firewall Management Center (FMC)affected 7.3.0; affected 7.3.1; affected 7.3.1.1; affected 7.4.0; affected 7.4.1; affected 7.4.1.1; affected 7.3.1.2; affected 7.6.0; affected 7.4.2; affected 7.4.2.1; affected 7.7.0; affected 7.4.2.2; affected 7.6.1; affected 7.4.2.3; affected 7.6.2; affected 7.7.10; affected 7.6.2.1; affected 7.7.10.1; affected 7.4.2.4; affected 7.4.3; affected 7.6.3; affected 7.7.11; affected 7.6.4; affected 10.0.0; affected 7.4.4; affected 7.4.5; affected 7.7.12; affected 7.6.5; affected 7.4.6; affected 10.0.1; affected 7.4.7

CWE

CWE-306

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.