CVE-2021-28846
First published: Tue Aug 10 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Trendnet Tew-755ap Firmware | =1.11b03 | |
| TRENDnet TEW-755AP | ||
| Trendnet Tew-755ap2kac Firmware | =1.11b03 | |
| Trendnet Tew-755ap2kac | ||
| Trendnet Tew-821dap2kac Firmware | =1.11b03 | |
| Trendnet Tew-821dap2kac | ||
| Trendnet Tew-825dap Firmware | =1.11b03 | |
| Trendnet Tew-825dap |
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Frequently Asked Questions
What is CVE-2021-28846?
CVE-2021-28846 is a Format String vulnerability in TRENDnet TEW-755AP, TEW-755AP2KAC, TEW-821DAP2KAC, and TEW-825DAP firmware versions 1.11B03.
What is the severity of CVE-2021-28846?
The severity of CVE-2021-28846 is medium, with a CVSS severity score of 6.5.
How does CVE-2021-28846 occur?
CVE-2021-28846 occurs due to a Format String vulnerability in the fprintf function with "%s: key len = %d, too long".
Which software versions are affected by CVE-2021-28846?
The affected software versions include TRENDnet TEW-755AP firmware 1.11B03, TEW-755AP2KAC firmware 1.11B03, TEW-821DAP2KAC firmware 1.11B03, and TEW-825DAP firmware 1.11B03.
Is TRENDnet TEW-755AP and TEW-755AP2KAC still vulnerable?
No, TRENDnet TEW-755AP and TEW-755AP2KAC are not vulnerable to CVE-2021-28846.
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- vendor/trendnet
- canonical/trendnet tew-755ap firmware
- version/trendnet tew-755ap firmware/1.11b03
- canonical/trendnet tew-755ap
- canonical/trendnet tew-755ap2kac firmware
- version/trendnet tew-755ap2kac firmware/1.11b03
- canonical/trendnet tew-755ap2kac
- canonical/trendnet tew-821dap2kac firmware
- version/trendnet tew-821dap2kac firmware/1.11b03
- canonical/trendnet tew-821dap2kac
- canonical/trendnet tew-825dap firmware
- version/trendnet tew-825dap firmware/1.11b03
- canonical/trendnet tew-825dap