CVE-2021-43573

A buffer overflow was discovered on Realtek RTL8195AM devices before 2.0.10. It exists in the client code when processing a malformed IE length of HT capability information in the Beacon and Association response frame.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.amebaiot.com/en/security_bulletin/cve-2021-43573/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:realtek:rtl8195am_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8195am:-:*:*:*:*:*:*:*

History

20 Dec 2021, 20:15

Type	Values Removed	Values Added
References	~~{'url': 'https://realtek.com', 'name': 'https://realtek.com', 'tags': ['Vendor Advisory'], 'refsource': 'MISC'}~~

12 Nov 2021, 20:40

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
CWE		CWE-120
CPE		cpe:2.3:o:realtek:rtl8195am_firmware:::::::: cpe:2.3:h:realtek:rtl8195am:-:::::::*
References	~~(MISC) https://realtek.com -~~	(MISC) https://realtek.com - Vendor Advisory
References	~~(MISC) https://www.amebaiot.com/en/security_bulletin/cve-2021-43573/ -~~	(MISC) https://www.amebaiot.com/en/security_bulletin/cve-2021-43573/ - Third Party Advisory

11 Nov 2021, 04:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-11-11 04:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-43573

Mitre link : CVE-2021-43573

CVE.ORG link : CVE-2021-43573

JSON object : View

Products Affected

realtek

rtl8195am
rtl8195am_firmware

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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