CVEs / CVE-2023-20048
CVE-2023-20048: Cisco Cisco Firepower Management Center vulnerability
- critical 9.9 CVSS 3.1 (NVD)
- EPSS 19.9% chance of exploitation in the next 30 days, higher than 97% of CVEs (2 Nov 2026)
- Last changed at its sources
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Description
A vulnerability in the web services interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to execute certain unauthorized configuration commands on a Firepower Threat Defense (FTD) device that is managed by the FMC Software. This vulnerability is due to insufficient authorization of configuration commands that are sent through the web service interface. An attacker could exploit this vulnerability by authenticating to the FMC web services interface and sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to execute certain configuration commands on the targeted FTD device. To successfully exploit this vulnerability, an attacker would need valid credentials on the FMC Software.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Cisco Cisco Firepower Management Center | 6.2.3 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.1 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.2 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.3 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.4 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.5 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.6 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.7 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.9 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.10 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.11 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.12 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.13 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.14 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.15 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.8 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.16 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.17 | — |
| Cisco Cisco Firepower Management Center | 6.2.3.18 | — |
| Cisco Cisco Firepower Management Center | 6.4.0 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.1 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.3 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.2 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.4 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.5 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.6 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.7 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.8 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.9 | — |
| Cisco Cisco Firepower Management Center | 6.4.0.10 | — |
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.
Severity
| CVSS 3.1 | 9.9 criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-269, CWE-863 |
References
- CVE-2023-20048 on NVD
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-cmd-inj-29MP49hN Vendor Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.