CVE-2021-31658

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-06-10 · updated 2026-07-09
Weakness: CWE-129

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.

Affected products

TP-Link Tl-Sg2005 Firmware: 1.0.0-build_20180529_rel.40524
TP-Link Tl-Sg2008 Firmware: 1.0.0-build_20180529_rel.40524

References

https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-31658
https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-31658

Get alerted when CVE-2021-31658 or the next vulnerability affects your stack