Cisco Secure Firewall Management Center (FMC) · information disclosure
cve-program · CVE-2026-20343
PublishedA 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.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-20343 · CVE overview and exploitation status
cve-program · CVE-2026-20343
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