Published: 10/08/2021 Updated: 17/08/2021

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_certificate function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the strrchr in the upload_certificate function would take NULL as first argument, and incur the NULL pointer dereference vulnerability.

Vulnerable Product	Search on Vulmon	Subscribe to Product
dlink dap-2310_firmware 2.0.7.rc031
dlink dap-2330_firmware 1.07.rc028
dlink dap-2360_firmware 2.07.rc043
dlink dap-2553_firmware 3.06.rc027
dlink dap-2660_firmware 1.13.rc074
dlink dap-2690_firmware 3.16.rc100
dlink dap-2695_firmware 1.17.rc063
dlink dap-3320_firmware 1.01.rc014
dlink dap-3662_firmware 1.01.rc022

CWE-476 https://www.dlink.com/en/security-bulletin/https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf https://nvd.nist.gov

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CVE-2021-28839

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