CVE-2021-28846

published 2021-08-10

CVE-2021-28846: A Format String vulnerablity exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a…

Priority P4 32 medium 6.5 CVSS 3.1

AV N AC L PR L UI N S U C N I N A H

A Format String vulnerablity exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial of service due to a logic bug at address 0x40dcd0 when calling fprintf with "%s: key len = %d, too long\n" format. The two variables seem to be put in the wrong order. The vulnerability could be triggered by sending the POST request to apply_cgi with a long and unknown key in the request body.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
trendnet	tew-755ap2kac_firmware	—	—
trendnet	tew-755ap_firmware	—	—
trendnet	tew-821dap2kac_firmware	—	—
trendnet	tew-825dap_firmware	—	—

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 4.0 MEDIUM AV:N/AC:L/Au:S/C:N/I:N/A:P

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CWE-134