CVE-2021-31959

moderate-risk

Published 2021-06-08

Scripting Engine Memory Corruption Vulnerability

Do I need to act?

4.4% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.4/10 Medium

NETWORK / HIGH complexity

Windows 10

Windows 7

Windows 8.1

Windows Rt 8.1

Windows Server 2008

Windows Server 2012

Windows Server 2016

Windows Server 2019

Microsoft

Third Party Advisory http://packetstormsecurity.com/files/163056/Internet-Explorer-jscript9.dll-Memor...

Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-3195...

Third Party Advisory http://packetstormsecurity.com/files/163056/Internet-Explorer-jscript9.dll-Memor...

Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-3195...

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moderate-risk

Severity 20/34 · Moderate

Exploitability 8/34 · Low

Exposure 18/34 · Moderate