{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-20155", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-20155", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2023-11-01T16:48:10.250Z", "updatedAt": "2024-08-02T09:05:34.875Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": null, "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.", "affected": [ { "vendor": "Cisco", "product": "Cisco Firepower Management Center", "versions": [ { "version": "6.2.3", "status": "affected" }, { "version": "6.2.3.1", "status": "affected" }, { "version": "6.2.3.2", "status": "affected" }, { "version": "6.2.3.3", "status": "affected" }, { "version": "6.2.3.4", "status": "affected" }, { "version": "6.2.3.5", "status": "affected" }, { "version": "6.2.3.6", "status": "affected" }, { "version": "6.2.3.7", "status": "affected" }, { "version": "6.2.3.9", "status": "affected" }, { "version": "6.2.3.10", "status": "affected" }, { "version": "6.2.3.11", "status": "affected" }, { "version": "6.2.3.12", "status": "affected" }, { "version": "6.2.3.13", "status": "affected" }, { "version": "6.2.3.14", "status": "affected" }, { "version": "6.2.3.15", "status": "affected" }, { "version": "6.2.3.8", "status": "affected" }, { "version": "6.2.3.16", "status": "affected" }, { "version": "6.2.3.17", "status": "affected" }, { "version": "6.2.3.18", "status": "affected" }, { "version": "6.4.0", "status": "affected" }, { "version": "6.4.0.1", "status": "affected" }, { "version": "6.4.0.3", "status": "affected" }, { "version": "6.4.0.2", "status": "affected" }, { "version": "6.4.0.4", "status": "affected" }, { "version": "6.4.0.5", "status": "affected" }, { "version": "6.4.0.6", "status": "affected" }, { "version": "6.4.0.7", "status": "affected" }, { "version": "6.4.0.8", "status": "affected" }, { "version": "6.4.0.9", "status": "affected" }, { "version": "6.4.0.10", "status": "affected" }, { "version": "6.4.0.11", "status": "affected" }, { "version": "6.4.0.12", "status": "affected" }, { "version": "6.4.0.13", "status": "affected" }, { "version": "6.4.0.14", "status": "affected" }, { "version": "6.4.0.15", "status": "affected" }, { "version": "6.4.0.16", "status": "affected" }, { "version": "6.6.0", "status": "affected" }, { "version": "6.6.0.1", "status": "affected" }, { "version": "6.6.1", "status": "affected" }, { "version": "6.6.3", "status": "affected" }, { "version": "6.6.4", "status": "affected" }, { "version": "6.6.5", "status": "affected" }, { "version": "6.6.5.1", "status": "affected" }, { "version": "6.6.5.2", "status": "affected" }, { "version": "6.6.7", "status": "affected" }, { "version": "6.6.7.1", "status": "affected" }, { "version": "6.7.0", "status": "affected" }, { "version": "6.7.0.1", "status": "affected" }, { "version": "6.7.0.2", "status": "affected" }, { "version": "6.7.0.3", "status": "affected" }, { "version": "7.0.0", "status": "affected" }, { "version": "7.0.0.1", "status": "affected" }, { "version": "7.0.1", "status": "affected" }, { "version": "7.0.1.1", "status": "affected" }, { "version": "7.0.2", "status": "affected" }, { "version": "7.0.2.1", "status": "affected" }, { "version": "7.0.3", "status": "affected" }, { "version": "7.0.4", "status": "affected" }, { "version": "7.0.5", "status": "affected" }, { "version": "7.1.0", "status": "affected" }, { "version": "7.1.0.1", "status": "affected" }, { "version": "7.1.0.2", "status": "affected" }, { "version": "7.1.0.3", "status": "affected" }, { "version": "7.2.0", "status": "affected" }, { "version": "7.2.1", "status": "affected" }, { "version": "7.2.2", "status": "affected" }, { "version": "7.2.0.1", "status": "affected" }, { "version": "7.2.3", "status": "affected" }, { "version": "7.2.3.1", "status": "affected" }, { "version": "7.3.0", "status": "affected" }, { "version": "7.3.1", "status": "affected" }, { "version": "7.3.1.1", "status": "affected" } ] } ] } } }