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CRITICAL · 9.8

CVE-2021-39306

A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in WEP security.

Vulnerability Description

A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in WEP security.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
RealtekRtl8195Am Firmware< 2.0.10
RealtekRtl8195Am-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-39306?

CVE-2021-39306 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in WEP security.

How severe is CVE-2021-39306?

CVE-2021-39306 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-39306?

Check the references section above for vendor advisories and patch information. Affected products include: Realtek Rtl8195Am Firmware, Realtek Rtl8195Am.