{ "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-2023-20200", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-20200", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2023-08-23T18:20:09.900Z", "updatedAt": "2025-07-01T13:57:36.701Z", "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 the Simple Network Management Protocol (SNMP) service of Cisco FXOS Software for Firepower 4100 Series and Firepower 9300 Security Appliances and of Cisco UCS 6300 Series Fabric Interconnects could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to the improper handling of specific SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.\r\n\r Note: This vulnerability affects all supported SNMP versions. To exploit this vulnerability through SNMPv2c or earlier, an attacker must know the SNMP community string that is configured on an affected device. To exploit this vulnerability through SNMPv3, the attacker must have valid credentials for an SNMP user who is configured on the affected device.", "affected": [ { "vendor": "Cisco", "product": "Cisco Unified Computing System (Managed)", "versions": [ { "version": "3.1(1e)", "status": "affected" }, { "version": "3.1(1g)", "status": "affected" }, { "version": "3.1(1h)", "status": "affected" }, { "version": "3.1(1k)", "status": "affected" }, { "version": "3.1(1l)", "status": "affected" }, { "version": "3.1(2b)", "status": "affected" }, { "version": "3.1(2c)", "status": "affected" }, { "version": "3.1(2e)", "status": "affected" }, { "version": "3.1(2f)", "status": "affected" }, { "version": "3.1(2g)", "status": "affected" }, { "version": "3.1(2h)", "status": "affected" }, { "version": "3.1(3a)", "status": "affected" }, { "version": "3.1(3b)", "status": "affected" }, { "version": "3.1(3c)", "status": "affected" }, { "version": "3.1(3d)", "status": "affected" }, { "version": "3.1(3e)", "status": "affected" }, { "version": "3.1(3f)", "status": "affected" }, { "version": "3.1(3h)", "status": "affected" }, { "version": "3.1(3j)", "status": "affected" }, { "version": "3.1(3k)", "status": "affected" }, { "version": "3.1(2d)", "status": "affected" }, { "version": "3.1(3l)", "status": "affected" }, { "version": "3.2(1d)", "status": "affected" }, { "version": "3.2(2b)", "status": "affected" }, { "version": "3.2(2c)", "status": "affected" }, { "version": "3.2(2d)", "status": "affected" }, { "version": "3.2(2e)", "status": "affected" }, { "version": "3.2(2f)", "status": "affected" }, { "version": "3.2(3a)", "status": "affected" }, { "version": "3.2(3b)", "status": "affected" }, { "version": "3.2(3d)", "status": "affected" }, { "version": "3.2(3e)", "status": "affected" }, { "version": "3.2(3g)", "status": "affected" }, { "version": "3.2(3h)", "status": "affected" }, { "version": "3.2(3i)", "status": "affected" }, { "version": "3.2(3j)", "status": "affected" }, { "version": "3.2(3k)", "status": "affected" }, { "version": "3.2(3l)", "status": "affected" }, { "version": "3.2(3n)", "status": "affected" }, { "version": "3.2(3o)", "status": "affected" }, { "version": "3.2(3p)", "status": "affected" }, { "version": "4.0(1a)", "status": "affected" }, { "version": "4.0(1b)", "status": "affected" }, { "version": "4.0(1c)", "status": "affected" }, { "version": "4.0(1d)", "status": "affected" }, { "version": "4.0(2a)", "status": "affected" }, { "version": "4.0(2b)", "status": "affected" }, { "version": "4.0(2d)", "status": "affected" }, { "version": "4.0(2e)", "status": "affected" }, { "version": "4.0(4b)", "status": "affected" }, { "version": "4.0(4c)", "status": "affected" }, { "version": "4.0(4d)", "status": "affected" }, { "version": "4.0(4e)", "status": "affected" }, { "version": "4.0(4f)", "status": "affected" }, { "version": "4.0(4g)", "status": "affected" }, { "version": "4.0(4h)", "status": "affected" }, { "version": "4.0(4a)", "status": "affected" }, { "version": "4.0(4i)", "status": "affected" }, { "version": "4.0(4k)", "status": "affected" }, { "version": "4.0(4l)", "status": "affected" }, { "version": "4.0(4m)", "status": "affected" }, { "version": "4.0(4n)", "status": "affected" }, { "version": "4.0(4o)", "status": "affected" }, { "version": "4.1(1a)", "status": "affected" }, { "version": "4.1(1b)", "status": "affected" }, { "version": "4.1(1c)", "status": "affected" }, { "version": "4.1(2a)", "status": "affected" }, { "version": "4.1(1d)", "status": "affected" }, { "version": "4.1(1e)", "status": "affected" }, { "version": "4.1(2b)", "status": "affected" }, { "version": "4.1(3a)", "status": "affected" }, { "version": "4.1(3b)", "status": "affected" }, { "version": "4.1(2c)", "status": "affected" }, { "version": "4.1(3d)", "status": "affected" }, { "version": "4.1(3c)", "status": "affected" }, { "version": "4.1(3e)", "status": "affected" }, { "version": "4.1(3f)", "status": "affected" }, { "version": "4.1(3h)", "status": "affected" }, { "version": "4.1(3i)", "status": "affected" }, { "version": "4.1(3j)", "status": "affected" }, { "version": "4.1(3k)", "status": "affected" }, { "version": "4.2(1d)", "status": "affected" }, { "version": "4.2(1c)", "status": "affected" }, { "version": "4.2(1f)", "status": "affected" }, { "version": "4.2(1i)", "status": "affected" }, { "version": "4.2(1k)", "status": "affected" }, { "version": "4.2(1l)", "status": "affected" }, { "version": "4.2(1m)", "status": "affected" }, { "version": "4.2(2a)", "status": "affected" }, { "version": "4.2(2c)", "status": "affected" }, { "version": "4.2(1n)", "status": "affected" }, { "version": "4.2(2d)", "status": "affected" }, { "version": "4.2(3b)", "status": "affected" }, { "version": "4.2(2e)", "status": "affected" } ] }, { "vendor": "Cisco", "product": "Cisco Firepower Extensible Operating System (FXOS)", "versions": [ { "version": "2.2.1.63", "status": "affected" }, { "version": "2.2.1.66", "status": "affected" }, { "version": "2.2.1.70", "status": "affected" }, { "version": "2.2.2.17", "status": "affected" }, { "version": "2.2.2.19", "status": "affected" }, { "version": "2.2.2.24", "status": "affected" }, { "version": "2.2.2.26", "status": "affected" }, { "version": "2.2.2.28", "status": "affected" }, { "version": "2.2.2.54", "status": "affected" }, { "version": "2.2.2.60", "status": "affected" }, { "version": "2.3.1.93", "status": "affected" }, { "version": "2.3.1.91", "status": "affected" }, { "version": "2.3.1.88", "status": "affected" }, { "version": "2.3.1.75", "status": "affected" }, { "version": "2.3.1.73", "status": "affected" }, { "version": "2.3.1.66", "status": "affected" }, { "version": "2.3.1.58", "status": "affected" }, { "version": "2.3.1.56", "status": "affected" } ] } ] } } }