CVE-2018-20305

9.8 criticalEPSS 4.1%

D-Link DIR-816 A2 1.10 B05 devices allow arbitrary remote code execution without authentication via the newpass parameter. In the /goform/form2userconfig.cgi handler function, a long password may lead to a stack-based buffer overflow and overwrite a return address.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 4.1% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2018-12-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

d-link:dir-816_a2_firmware

References

https://github.com/RootSoull/Vuln-Poc/tree/master/D-Link/DIR-816
https://github.com/RootSoull/Vuln-Poc/tree/master/D-Link/DIR-816

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