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cve[email protected]CVE-2021-28846
HistoryAug 10, 2021 - 8:15 p.m.

CVE-2021-28846

2021-08-1020:15:08
CWE-134
web.nvd.nist.gov
16
cve
2021
28846
format string
vulnerability
trendnet
tew-755ap
tew-821dap2kac
tew-825dap
nvd

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.7%

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 configurations

NVD
Node
trendnettew-755ap_firmwareMatch1.11b03
AND
trendnettew-755apMatch-
Node
trendnettew-755ap2kac_firmwareMatch1.11b03
AND
trendnettew-755ap2kacMatch-
Node
trendnettew-821dap2kac_firmwareMatch1.11b03
AND
trendnettew-821dap2kacMatch-
Node
trendnettew-825dap_firmwareMatch1.11b03
AND
trendnettew-825dapMatch-

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.7%

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