{"id":"CVE-2020-25758","aliases":["EUVD-2020-18409","GHSA-cfw4-vhm2-m225"],"status":"published","title":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration...","description":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration file checksums could allow a remote, authenticated attacker to inject arbitrary crontab entries into saved configurations before uploading. These entries are executed as root.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01251,"percentile":0.69616,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2020-12-15T19:27:55Z","modified":"2026-06-17T03:07:15Z","products":[{"vendor":"dlink","product":"dsr-1000_firmware"},{"vendor":"dlink","product":"dsr-1000ac_firmware"},{"vendor":"dlink","product":"dsr-1000n_firmware"},{"vendor":"dlink","product":"dsr-150_firmware"},{"vendor":"dlink","product":"dsr-150n_firmware"},{"vendor":"dlink","product":"dsr-250_firmware"},{"vendor":"dlink","product":"dsr-250n_firmware"},{"vendor":"dlink","product":"dsr-500_firmware"},{"vendor":"dlink","product":"dsr-500ac_firmware"},{"vendor":"dlink","product":"dsr-500n_firmware"}],"references":[{"url":"https://www.dlink.com/en/security-bulletin","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10195","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.digitaldefense.com/news/zero-day-vuln-d-link-vpn-routers/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25758"},{"url":"https://github.com/advisories/GHSA-cfw4-vhm2-m225"}],"sources":{"cve":[{"id":"CVE-2020-25758","description":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration file checksums could allow a remote, authenticated attacker to inject arbitrary crontab entries into saved configurations before uploading. These entries are executed as root.","status":"published","published":"2020-12-15T19:27:55Z","modified":"2024-08-04T15:40:36.946Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2020-18409","description":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration file checksums could allow a remote, authenticated attacker to inject arbitrary crontab entries into saved configurations before uploading. These entries are executed as root.","status":"published","published":"2020-12-15T19:27:55Z","modified":"2024-08-04T15:40:36Z","updated_at":"2026-11-03T03:07:16.74035Z"}],"ghsa":[{"id":"GHSA-cfw4-vhm2-m225","title":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration...","description":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration file checksums could allow a remote, authenticated attacker to inject arbitrary crontab entries into saved configurations before uploading. These entries are executed as root.","status":"published","published":"2022-05-24T17:36:28Z","modified":"2023-01-29T05:05:02Z","cwes":["CWE-354"],"updated_at":"2026-11-02T14:45:41.669563Z"}],"nvd":[{"id":"CVE-2020-25758","description":"An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration file checksums could allow a remote, authenticated attacker to inject arbitrary crontab entries into saved configurations before uploading. These entries are executed as root.","status":"published","published":"2020-12-15T20:15:16.243Z","modified":"2026-06-17T03:07:15.293Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}