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CVE

CVE-2024-30040

Microsoft Windows MSHTML Platform Security Feature Bypass Vulnerability

Windows MSHTML Platform Security Feature Bypass Vulnerability.

HIGH · CVSS 8.8 ⚠ CISA KEV EPSS 0.28657
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

12
microsoft windows 10 1507< 10.0.10240.20651
microsoft windows 10 1607< 10.0.14393.6981
microsoft windows 10 1809< 10.0.17763.5820
microsoft windows 10 21h2< 10.0.19044.4412
microsoft windows 10 22h2< 10.0.19045.4412
microsoft windows 11 21h2< 10.0.22000.2960
microsoft windows 11 22h2< 10.0.22621.3593
microsoft windows 11 23h2< 10.0.22631.3593
▣

Scoring & Timeline

8.8
HIGH · 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 NVD14 May 2024 · 05:17 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
msrcCVE-2024-30040Security Feature Bypass
cisaKEV-CVE-2024-30040
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-30040US Government Resource
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