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TI-2023-06862 Aliases CVE-2023-20155GHSA-mf9w-w633-hm7w

Resource allocation without limits in Cisco Firepower Management Center

Priority LOW 35CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

A vulnerability in a logging API in Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to cause the device to become unresponsive or trigger an unexpected reload. This vulnerability could also allow an attacker with valid user credentials, but not Administrator privileges, to view a system log file that they would not normally have access to. This vulnerability is due to a lack of rate-limiting of requests that are sent to a specific API that is related to an FMC log. An attacker could exploit this vulnerability by sending a high rate of HTTP requests to the API. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the FMC CPU spiking to 100 percent utilization or to the device reloading. CPU utilization would return to normal if the attack traffic was stopped before an unexpected reload was triggered.

Why it matters now

EPSS 0.00899 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Firepower Management Center6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; 6.2.3.6; 6.2.3.7; 6.2.3.9; 6.2.3.10; 6.2.3.11; 6.2.3.12; 6.2.3.13; 6.2.3.14; 6.2.3.15; 6.2.3.8; 6.2.3.16; 6.2.3.17; 6.2.3.18; 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; 6.4.0.6; 6.4.0.7; 6.4.0.8; 6.4.0.9; 6.4.0.10; 6.4.0.11; 6.4.0.12; 6.4.0.13; 6.4.0.14; 6.4.0.15; 6.4.0.16; 6.6.0; 6.6.0.1; 6.6.1; 6.6.3; 6.6.4; 6.6.5; 6.6.5.1; 6.6.5.2; 6.6.7; 6.6.7.1; 6.7.0; 6.7.0.1; 6.7.0.2; 6.7.0.3; 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; 7.0.4; 7.0.5; 7.1.0; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.2.0; 7.2.1; 7.2.2; 7.2.0.1; 7.2.3; 7.2.3.1; 7.3.0; 7.3.1; 7.3.1.1—No fix listedCNA
  • Cisco Firepower Management Center VendorCisco Affected 6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; 6.2.3.6; 6.2.3.7; 6.2.3.9; 6.2.3.10; 6.2.3.11; 6.2.3.12; 6.2.3.13; 6.2.3.14; 6.2.3.15; 6.2.3.8; 6.2.3.16; 6.2.3.17; 6.2.3.18; 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; 6.4.0.6; 6.4.0.7; 6.4.0.8; 6.4.0.9; 6.4.0.10; 6.4.0.11; 6.4.0.12; 6.4.0.13; 6.4.0.14; 6.4.0.15; 6.4.0.16; 6.6.0; 6.6.0.1; 6.6.1; 6.6.3; 6.6.4; 6.6.5; 6.6.5.1; 6.6.5.2; 6.6.7; 6.6.7.1; 6.7.0; 6.7.0.1; 6.7.0.2; 6.7.0.3; 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; 7.0.4; 7.0.5; 7.1.0; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.2.0; 7.2.1; 7.2.2; 7.2.0.1; 7.2.3; 7.2.3.1; 7.3.0; 7.3.1; 7.3.1.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*6.2.3 – 6.2.3.18; 6.4.0 – 6.4.0.16; 6.6.0 – 6.6.7.1; 7.0.0 – 7.0.5; 7.1.0 – 7.1.0.3; 7.2.0 – 7.2.3.1; 7.3.0 – 7.3.1.1VulnerableCisco
  • cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* Versions 6.2.3 – 6.2.3.18; 6.4.0 – 6.4.0.16; 6.6.0 – 6.6.7.1; 7.0.0 – 7.0.5; 7.1.0 – 7.1.0.3; 7.2.0 – 7.2.3.1; 7.3.0 – 7.3.1.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-20155
  2. 2026-10-03 Alias added: GHSA-mf9w-w633-hm7w

References

Advisory 1

  • TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16292 Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16502 Cisco Secure Firewall Management Center Software Static Credential Vulnerability KEVCVSS 3.1MEDIUM 5.3
  • TI-2016-05515 The Threat Management Console in Cisco Firepower Management Center 5.2.0 through 6.0.1… CVSS 3.1HIGH 8.8
  • TI-2025-14563 Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2023-06757 Improper privilege management in Cisco Firepower Management Center CVSS 3.1CRITICAL 9.9
See all 186 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences