What is the CVSS score of CVE-2020-1172?

CVE-2020-1172 has a CVSS 3.1 base score of 4.2 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N. EPSS exploitation probability: 2.1%.

Is there a patch available for CVE-2020-1172?

Yes, a patch is available for CVE-2020-1172. Update the affected software to the latest version immediately.

Chakracore CVE-2020-1172

MEDIUM

Out-of-bounds Write (CWE-787)

2020-09-11 secure@microsoft.com

Buffer Overflow RCE Memory Corruption Chakracore Edge

4.2

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

4.2 MEDIUM

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

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Sep 11, 2020 - 17:15 cve.org

MEDIUM 4.2

DescriptionCVE.org

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by modifying how the ChakraCore scripting engine handles objects in memory.

AnalysisAI

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. Rated medium severity (CVSS 4.2), this vulnerability is remotely exploitable, no authentication required. 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. A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by modifying how the ChakraCore scripting engine handles objects in memory. Affected products include: Microsoft Chakracore, Microsoft Edge.

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).