CVE-2021-43573 : A buffer overflow was discovered on Realtek RTL8195AM devices before 2.0.10. It exists in the client code when processin

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.

Published 2021-11-11 04:15:06

Updated 2021-12-21 19:59:04

Source MITRE

View at NVD, CVE.org

Vulnerability category: Overflow

Exploit prediction scoring system (EPSS) score for CVE-2021-43573

EPSS FAQ

0.25%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 65 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-43573

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-43573

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

Assigned by: nvd@nist.gov (Primary)

Products affected by CVE-2021-43573

Realtek » Rtl8195am Firmware
Versions up to, including, (<=) 2.0.10
cpe:2.3:o:realtek:rtl8195am_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Realtek » Rtl8195am » Version: N/A

Vulnerability Details : CVE-2021-43573

Exploit prediction scoring system (EPSS) score for CVE-2021-43573

CVSS scores for CVE-2021-43573

CWE ids for CVE-2021-43573

References for CVE-2021-43573

Products affected by CVE-2021-43573