VULNERABILITY INTELLIGENCE
CVE-2026-20343
CVSS score7.5 HIGH
EPSS probability0.66%
CISA KEVNot currently listed
Published2026-09-16
Last modified2026-09-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
Weakness classification
- psirt@cisco.com: CWE-306