{ "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-2019-1761", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2019-1761", "idYear": 2019, "status": "PUBLISHED", "publishedAt": "2019-03-28T00:25:15.422Z", "updatedAt": "2024-11-21T19:41:22.576Z", "importedAt": "2026-10-24T01:56:08.750Z", "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": "Cisco IOS and IOS XE Software Hot Standby Router Protocol Information Leak Vulnerability", "summary": "A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device. The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device.", "affected": [ { "vendor": "Cisco", "product": "Cisco IOS and IOS XE Software", "versions": [ { "version": "3.2.0SG", "status": "affected" }, { "version": "3.2.1SG", "status": "affected" }, { "version": "3.2.2SG", "status": "affected" }, { "version": "3.2.3SG", "status": "affected" }, { "version": "3.2.4SG", "status": "affected" }, { "version": "3.2.5SG", "status": "affected" }, { "version": "3.2.6SG", "status": "affected" }, { "version": "3.2.7SG", "status": "affected" }, { "version": "3.2.8SG", "status": "affected" }, { "version": "3.2.9SG", "status": "affected" }, { "version": "3.2.10SG", "status": "affected" }, { "version": "3.2.11SG", "status": "affected" }, { "version": "3.7.0S", "status": "affected" }, { "version": "3.7.1S", "status": "affected" }, { "version": "3.7.2S", "status": "affected" }, { "version": "3.7.3S", "status": "affected" }, { "version": "3.7.4S", 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"status": "affected" }, { "version": "3.17.3S", "status": "affected" }, { "version": "3.17.4S", "status": "affected" }, { "version": "16.1.1", "status": "affected" }, { "version": "16.1.2", "status": "affected" }, { "version": "16.1.3", "status": "affected" }, { "version": "3.2.0JA", "status": "affected" }, { "version": "16.2.1", "status": "affected" }, { "version": "16.2.2", "status": "affected" }, { "version": "3.8.0E", "status": "affected" }, { "version": "3.8.1E", "status": "affected" }, { "version": "3.8.2E", "status": "affected" }, { "version": "3.8.3E", "status": "affected" }, { "version": "3.8.4E", "status": "affected" }, { "version": "3.8.5E", "status": "affected" }, { "version": "3.8.5aE", "status": "affected" }, { "version": "3.8.6E", "status": "affected" }, { "version": "3.8.7E", "status": "affected" }, { "version": "16.3.1", "status": "affected" }, { "version": "16.3.2", "status": "affected" }, { "version": "16.3.3", "status": "affected" }, { "version": "16.3.1a", 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"status": "affected" }, { "version": "3.18.1aSP", "status": "affected" }, { "version": "3.18.1gSP", "status": "affected" }, { "version": "3.18.1bSP", "status": "affected" }, { "version": "3.18.1cSP", "status": "affected" }, { "version": "3.18.2SP", "status": "affected" }, { "version": "3.18.1hSP", "status": "affected" }, { "version": "3.18.2aSP", "status": "affected" }, { "version": "3.18.1iSP", "status": "affected" }, { "version": "3.18.3SP", "status": "affected" }, { "version": "3.18.4SP", "status": "affected" }, { "version": "3.18.3aSP", "status": "affected" }, { "version": "3.18.3bSP", "status": "affected" }, { "version": "3.18.5SP", "status": "affected" }, { "version": "3.9.0E", "status": "affected" }, { "version": "3.9.1E", "status": "affected" }, { "version": "3.9.2E", "status": "affected" }, { "version": "3.9.2bE", "status": "affected" }, { "version": "16.6.1", "status": "affected" }, { "version": "16.6.2", "status": "affected" }, { "version": "16.6.3", "status": "affected" }, { "version": "16.6.4", "status": "affected" }, { "version": "16.6.4s", "status": "affected" }, { "version": "16.6.4a", "status": "affected" }, { "version": "16.7.1", "status": "affected" }, { "version": "16.7.1a", "status": "affected" }, { "version": "16.7.1b", "status": "affected" }, { "version": "16.7.2", "status": "affected" }, { "version": "16.8.1", "status": "affected" }, { "version": "16.8.1a", "status": "affected" }, { "version": "16.8.1b", "status": "affected" }, { "version": "16.8.1s", "status": "affected" }, { "version": "16.8.1c", "status": "affected" }, { "version": "16.8.1d", "status": "affected" }, { "version": "16.8.2", "status": "affected" }, { "version": "16.8.1e", "status": "affected" }, { "version": "16.9.1", "status": "affected" }, { "version": "16.9.1a", "status": "affected" }, { "version": "16.9.1b", "status": "affected" }, { "version": "16.9.1s", "status": "affected" }, { "version": "16.9.1c", "status": "affected" }, { "version": "16.9.1d", "status": "affected" }, { "version": "3.10.0E", "status": "affected" }, { "version": "3.10.1E", "status": "affected" }, { "version": "3.10.0cE", "status": "affected" }, { "version": "3.10.2E", "status": "affected" }, { "version": "3.10.1aE", "status": "affected" }, { "version": "3.10.1sE", "status": "affected" } ] } ] } } }