{"id":"CVE-2021-30072","aliases":["EUVD-2021-17016","GHSA-2548-2rfq-335j"],"status":"published","title":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused,...","description":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01485,"percentile":0.74355,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-04-02T19:55:08Z","modified":"2026-06-17T03:49:39Z","products":[{"vendor":"dlink","product":"dir-878_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=SAP10217","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30072"},{"url":"https://github.com/advisories/GHSA-2548-2rfq-335j"}],"sources":{"cve":[{"id":"CVE-2021-30072","description":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.","status":"published","published":"2021-04-02T19:55:08Z","modified":"2024-08-03T22:24:59.414Z","updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-17016","description":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.","status":"published","published":"2021-04-02T19:55:08Z","modified":"2024-08-03T22:24:59Z","updated_at":"2026-11-03T03:24:42.963555Z"}],"ghsa":[{"id":"GHSA-2548-2rfq-335j","title":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused,...","description":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.","status":"published","published":"2022-05-24T17:46:27Z","modified":"2023-01-29T05:06:15Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:59.056416Z"}],"nvd":[{"id":"CVE-2021-30072","description":"An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.","status":"published","published":"2021-04-02T20:15:13.473Z","modified":"2026-06-17T03:49:39.923Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}