CVE-2021-31658: tp-link tl-sg2005_firmware Improper Validation of Array Index

Vulnerability summary

CVE-2021-31658 is a high (CVSS 8.1) Improper Validation of Array Index vulnerability in tp-link tl-sg2005_firmware. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 63.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 10-06-2021
   PublishedVulnerability first disclosed.
2. 09-07-2026
   Last modifiedVulnerability information updated.

Description

TP-Link TL-SG2005, TL-SG2008, etc. 1.0.0 Build 20180529 Rel.40524 is affected by an Array index error. The interface that provides the "device description" function only judges the length of the received data, and does not filter special characters. This vulnerability will cause the application to crash, and all device configuration information will be erased.

• CWE-129Improper Validation of Array IndexThe product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.