What’s Vulnerable › Vulnerabilities

CVE-2022-37134

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 21.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-22 · updated 2026-06-17
• Weakness: CWE-1284

Description

D-link DIR-816 A2_v1.10CNB04.img is vulnerable to Buffer Overflow via /goform/form2Wan.cgi. When wantype is 3, l2tp_usrname will be decrypted by base64, and the result will be stored in v94, which does not check the size of l2tp_usrname, resulting in stack overflow.

Affected products

• D-Link DIR-816: 1.10cnb04

References

• https://github.com/z1r00/IOT_Vul/blob/main/dlink/Dir816/form2Wan_cgi/readme.md
• https://www.dlink.com/en/security-bulletin/
• https://github.com/z1r00/IOT_Vul/blob/main/dlink/Dir816/form2Wan_cgi/readme.md
• https://www.dlink.com/en/security-bulletin/

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