VulnerabilityModified
CVE-2021-43722
D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow.
CRITICAL 9.8EPSS 3.16%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.16% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- dlink/dir-645 firmware
- Source
- cve@mitre.org
References
- https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.mdExploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin/Vendor Advisory
- https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.mdExploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.