{"cve":"CVE-2021-39615","nvd":{"published":"2021-08-23T22:15:28.937","modified":"2026-06-17T04:03:53.270","status":"Modified","description":"D-Link DSR-500N version 1.02 contains hard-coded credentials for undocumented user accounts in the '/etc/passwd' file.If an attacker succeeds in recovering the cleartext password of the identified hash value, he will be able to log in via SSH or Telnet and thus gain access to the underlying embedded Linux operating system on the device. Fixed in version 2.12/2. NOTE: This vulnerability only affects products that are no longer supported by the maintainer","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-798"],"references":["https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10235","https://www.dlink.com/en/security-bulletin/","https://www.nussko.com/advisories/advisory-2021-08-02.txt","https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10235","https://www.dlink.com/en/security-bulletin/"],"products":["dlink:dsr-500n_firmware"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-39615","score":0.02196,"percentile":0.82487,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}