CVEvulnerability
CVE-2021-39509
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-08-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-77
Description
An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1.10CNB05_R1B011D88210 The HTTP request parameter is used in the handler function of /goform/form2userconfig.cgi route, which can construct the user name string to delete the user function. This can lead to command injection through shell metacharacters.
Affected configurations
• dlink dir-816 firmware 1.10cnb05 r1b011d88210
Related
Weakness · CWE (1)
- CWE-77 Improper Neutralization of Special Elements used in a Command weakness
References
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injection Third Party Advisory
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin/ Vendor Advisory
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injection Third Party Advisory
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin/ Vendor Advisory