Stack Buffer Overflow in Realtek RTL8710 Wifi Devices
CVE-2020-27302

8HIGH

Key Information:

Vendor

Realtek

Status
Rtl8710c Firmware
Vendor
CVE Published:
4 June 2021

What is CVE-2020-27302?

A stack buffer overflow vulnerability exists in Realtek's RTL8710 and associated Ameba-based devices, arising from the improper handling of the 'memcpy' function. This flaw can be exploited remotely by an attacker within Wi-Fi range, who can send a specially crafted 'Encrypted GTK' value during the WPA2 4-way handshake. Successful exploitation could allow the attacker to execute arbitrary code on the affected device, posing serious security risks.

References

https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-ze...
x_refsource_MISC

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2020-27302 : Stack Buffer Overflow in Realtek RTL8710 Wifi Devices