Vulnerability record · CVE-2021-43722 · published 31 March 2022
CVE-2021-43722: Dlink dir-645 firmware out-of-bounds write vulnerability
Dlink · Dir 645 Firmware
D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header onto the stack and has no limit on the size.
Description
D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header onto the stack and has no limit on the size.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md | ExploitThird Party Advisory |
| https://www.dlink.com/en/security-bulletin/ | Vendor Advisory |
| https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md | ExploitThird Party Advisory |
| https://www.dlink.com/en/security-bulletin/ | Vendor Advisory |
Track CVE-2021-43722 inside VULONE
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Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2021-43722), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.
