cve.bz

CVE-2021-39509

9.8 criticalEPSS 5.1%

Critical (9.8) in dlink dir-816 firmware. EPSS 5.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
5.1% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWE
CWE-77
Published
Modified
Record from
the NVD, synced

Affected

References

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