VDB-186550 · CVE-2021-43573 · GCVE-0-2021-43573

Realtek RTL8195AM prior 2.0.10 Response Frame buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Realtek RTL8195AM. Affected by this issue is some unknown functionality of the component Response Frame Handler. Executing a manipulation can lead to buffer overflow. This vulnerability is registered as CVE-2021-43573. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Realtek RTL8195AM. It has been declared as critical. This vulnerability affects an unknown function of the component Response Frame Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 11/11/2021. The advisory is available at amebaiot.com. This vulnerability was named CVE-2021-43573 since 11/09/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 2.0.10 eliminates this vulnerability.

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Productinfo

Vendor

Realtek

Name

RTL8195AM

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: RTL8195AM 2.0.10

Timelineinfo

11/09/2021 🔍
11/11/2021 +2 days 🔍
11/11/2021 +0 days 🔍
11/16/2021 +5 days 🔍

Sourcesinfo

Advisory: amebaiot.com
Status: Confirmed

CVE: CVE-2021-43573 (🔍)
GCVE (CVE): GCVE-0-2021-43573
GCVE (VulDB): GCVE-100-186550

Entryinfo

Created: 11/11/2021 08:02
Updated: 11/16/2021 08:36
Changes: 11/11/2021 08:02 (38), 11/16/2021 08:33 (1), 11/16/2021 08:36 (18)
Complete: 🔍
Cache ID: 216::103