What is the CVSS score of CVE-2020-9395?

CVE-2020-9395 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.8%.

Is there a patch available for CVE-2020-9395?

Yes, a patch is available for CVE-2020-9395. Update the affected software to the latest version immediately.

Rtl8711Af Firmware CVE-2020-9395

HIGH

Out-of-bounds Write (CWE-787)

2020-07-06 cve@mitre.org

Buffer Overflow Memory Corruption Rtl8711Af Firmware Rtl8711Am Firmware Rtl8195Am Firmware Rtl8710Af Firmware

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 06, 2020 - 22:15 nvd

HIGH 8.0

DescriptionNVD

An issue was discovered on Realtek RTL8195AM, RTL8711AM, RTL8711AF, and RTL8710AF devices before 2.0.6. A stack-based buffer overflow exists in the client code that takes care of WPA2's 4-way-handshake via a malformed EAPOL-Key packet with a long keydata buffer.

AnalysisAI

An issue was discovered on Realtek RTL8195AM, RTL8711AM, RTL8711AF, and RTL8710AF devices before 2.0.6. Rated high severity (CVSS 8.0). This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. An issue was discovered on Realtek RTL8195AM, RTL8711AM, RTL8711AF, and RTL8710AF devices before 2.0.6. A stack-based buffer overflow exists in the client code that takes care of WPA2's 4-way-handshake via a malformed EAPOL-Key packet with a long keydata buffer. Affected products include: Realtek Rtl8711Af Firmware, Realtek Rtl8711Am Firmware, Realtek Rtl8195Am Firmware, Realtek Rtl8710Af Firmware. Version information: before 2.0.6..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).