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CVE

CVE-2021-31959

Scripting Engine Memory Corruption Vulnerability

Scripting Engine Memory Corruption Vulnerability.

MEDIUM · CVSS 6.4 EPSS 0.05857
Schedule remediation
  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
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Affected Products & Versions

8
microsoft windows 10all versions
microsoft windows 7all versions
microsoft windows 8.1all versions
microsoft windows rt 8.1all versions
microsoft windows server 2008all versions
microsoft windows server 2012all versions
microsoft windows server 2016all versions
microsoft windows server 2019all versions
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Internet-Explorer-jscript9.dll-Memory-Corruption.htmlpacketstormsecurity.com
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Scoring & Timeline

6.4
MEDIUM · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Jun 2021 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2021-31959Remote Code Execution
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31959PatchVendor Advisory
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