CVE-2026-20343
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.3.0 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.3.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.3.1.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.0 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.1.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.3.1.2 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.0 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.2 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.2.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.7.0 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.2.2 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.2.3 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.2 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.7.10 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.2.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.7.10.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.2.4 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.3 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.3 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.7.11 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.4 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 10.0.0 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.4 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.5 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.7.12 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.6.5 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.6 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 10.0.1 | affected |
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.4.7 | affected |
Weaknesses
- CWE-306: Missing Authentication for Critical Function
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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