CVE-2022-37134: dlink dir-816_firmware

Vulnerability summary

CVE-2022-37134 is a critical (CVSS 9.8) vulnerability in dlink dir-816_firmware. EPSS estimates a 21.70% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 22-08-2022
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-1284Improper Validation of Specified Quantity in InputThe product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.