{ "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-2025-20248", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-20248", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-09-10T16:06:49.860Z", "updatedAt": "2026-02-26T17:48:42.697Z", "importedAt": "2026-10-24T01:57:24.991Z", "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 XR Software Image Verification Bypass Vulnerability", "summary": "A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device.\r\n\r\nThis vulnerability is due to incomplete validation of files during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process.", "affected": [ { "vendor": "Cisco", "product": "Cisco IOS XR Software", "defaultStatus": "unknown", "versions": [ { "version": "6.5.3", "status": "affected" }, { "version": "6.5.29", "status": "affected" }, { "version": "6.5.1", "status": "affected" }, { "version": "6.6.1", "status": "affected" }, { "version": "6.5.2", "status": "affected" }, { "version": "6.5.92", "status": "affected" }, { "version": "6.5.15", "status": "affected" }, { "version": "6.6.2", "status": "affected" }, { "version": "7.0.1", "status": "affected" }, { "version": "6.6.25", "status": "affected" }, { "version": "6.5.26", "status": "affected" }, { "version": "6.6.11", "status": "affected" }, { "version": "6.5.25", "status": "affected" }, { "version": "6.5.28", "status": "affected" }, { "version": "6.5.93", "status": "affected" }, { "version": "6.6.12", "status": "affected" }, { "version": "6.5.90", "status": "affected" }, { "version": "7.0.0", "status": "affected" }, { "version": "7.1.1", "status": "affected" }, { "version": "7.0.90", "status": "affected" }, { "version": "6.6.3", "status": "affected" }, { "version": "6.7.1", "status": "affected" }, { "version": "7.0.2", "status": "affected" }, { "version": "7.1.15", "status": "affected" }, { "version": "7.2.0", "status": "affected" }, { "version": "7.2.1", "status": "affected" }, { "version": "7.1.2", "status": "affected" }, { "version": "6.7.2", "status": "affected" }, { "version": "7.1.25", "status": "affected" }, { "version": "6.6.4", "status": "affected" }, { "version": "7.3.1", "status": "affected" }, { "version": "7.1.3", "status": "affected" }, { "version": "6.7.3", "status": "affected" }, { "version": "7.4.1", "status": "affected" }, { "version": "7.2.2", "status": "affected" }, { "version": "6.5.31", "status": "affected" }, { "version": "6.8.1", "status": "affected" }, { "version": "7.4.15", "status": "affected" }, { "version": "6.5.32", "status": "affected" }, { "version": "7.3.2", "status": "affected" }, { "version": "7.5.1", "status": "affected" }, { "version": "7.4.16", "status": "affected" }, { "version": "7.3.27", "status": "affected" }, { "version": "7.6.1", "status": "affected" }, { "version": "7.5.2", "status": "affected" }, { "version": "7.6.15", "status": "affected" }, { "version": "7.3.3", "status": "affected" }, { "version": "7.7.1", "status": "affected" }, { "version": "6.8.2", "status": "affected" }, { "version": "7.3.4", "status": "affected" }, { "version": "7.4.2", "status": "affected" }, { "version": "6.7.35", "status": "affected" }, { "version": "6.9.1", "status": "affected" }, { "version": "7.6.2", "status": "affected" }, { "version": "7.8.1", "status": "affected" }, { "version": "7.5.3", "status": "affected" }, { "version": "7.7.2", "status": "affected" }, { "version": "6.9.2", "status": "affected" }, { "version": "7.9.1", "status": "affected" }, { "version": "7.8.2", "status": "affected" }, { "version": "7.5.4", "status": "affected" }, { "version": "6.5.33", "status": "affected" }, { "version": "7.8.22", "status": "affected" }, { "version": "7.10.1", "status": "affected" }, { "version": "7.7.21", "status": "affected" }, { "version": "7.9.2", "status": "affected" }, { "version": "7.3.5", "status": "affected" }, { "version": "7.5.5", "status": "affected" }, { "version": "7.11.1", "status": "affected" }, { "version": "7.9.21", "status": "affected" }, { "version": "7.10.2", "status": "affected" }, { "version": "7.6.3", "status": "affected" }, { "version": "24.1.1", "status": "affected" }, { "version": "7.3.6", "status": "affected" }, { "version": "7.11.2", "status": "affected" }, { "version": "24.2.1", "status": "affected" }, { "version": "24.1.2", "status": "affected" }, { "version": "24.2.11", "status": "affected" }, { "version": "24.3.1", "status": "affected" }, { "version": "24.4.1", "status": "affected" }, { "version": "24.2.2", "status": "affected" }, { "version": "7.8.23", "status": "affected" }, { "version": "7.11.21", "status": "affected" }, { "version": "24.2.20", "status": "affected" }, { "version": "24.3.2", "status": "affected" }, { "version": "24.4.10", "status": "affected" }, { "version": "6.5.35", "status": "affected" }, { "version": "24.4.15", "status": "affected" }, { "version": "6.5.351", "status": "affected" }, { "version": "6.5.352", "status": "affected" } ] } ] } } }