Buffer overflow in Dlink Dir-645
CVE-2021-43722
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.
Vulnerability class: Buffer Overflow
EPSS: 0.031 (86.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Dlink Dir-645 — versions a1
- Dlink Dir-645_firmware — versions 1.03
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-43722?
- CVE-2021-43722 is a critical-severity vulnerability in Dlink Dir-645, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-03-31.
- How severe is CVE-2021-43722?
- Critical severity. CVSS v3 base score is 9.8 out of 10.