CVE-2021-39615 json
D-Link DSR-500N version 1.02 contains hard-coded credentials for undocumented user accounts in the '/etc/passwd' file.If an attacker succee…
published 2021-08-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25972
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
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
Exploit prediction
2.20% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- nussko.com https://www.nussko.com/advisories/advisory-2021-08-02.txt referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-798 Use of Hard-coded Credentials
References
-
nussko.com
/advisories/advisory-2021-08-02.txt
exploit, third-party-advisory
-
dlink.com
/en/security-bulletin/
vendor-advisory
-
supportannouncement.us.dlink.com
/announcement/publication.aspx?name=SAP10235
vendor-advisory
Sources
- CVE List CVE-2021-39615
- NVD CVE-2021-39615
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