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CVE

CVE-2023-36025

Microsoft Windows SmartScreen Security Feature Bypass Vulnerability

Windows SmartScreen Security Feature Bypass Vulnerability.

HIGH · CVSS 8.8 ⚠ CISA KEV EPSS 0.91473
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules10 YARA rules0
⬢

Required Remediation

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

◆

Threat Actors Linked

7
actorBumblebee Operators / EXOTIC LILY
actorDarkGate Operators
actorEmotet Operators
actorIcedID / BokBot Operators (Lunar Spider)
actorMoonstone Sleet (Storm-1789)
actorPikaBot Operators / Water Curupira
▤

Affected Products & Versions

13
microsoft windows 10 1507all versions
microsoft windows 10 1607all versions
microsoft windows 10 1809all versions
microsoft windows 10 21h2all versions
microsoft windows 10 22h2all versions
microsoft windows 11 21h2all versions
microsoft windows 11 22h2all versions
microsoft windows 11 23h2all versions
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Detection Rules (IDS/IPS)

6
et-openET MALWARE WebDAV Retrieving .exe from .url M1 (CVE-2023-36025)trojan-activity
et-openET MALWARE WebDAV Retrieving .zip from .url M1 (CVE-2023-36025)trojan-activity
et-openET MALWARE WebDAV Retrieving .exe from .url M2 (CVE-2023-36025)trojan-activity
et-openET MALWARE WebDAV Retrieving .zip from .url M2 (CVE-2023-36025)trojan-activity
et-openET MALWARE WebDAV Retrieving .vbs from .url M1 (CVE-2023-36025)trojan-activity
et-openET MALWARE WebDAV Retrieving .vbs from .url M2 (CVE-2023-36025)trojan-activity
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
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Sigma Hunt Rules

10
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
relatedcriticalAntivirus Password Dumper Detection
relatedcriticalHacktool Execution - Imphash
relatedcriticalHackTool - Rubeus Execution
relatedcriticalPotential Credential Dumping Via LSASS Process Clone
relatedcriticalWCE wceaux.dll Access
relatedcriticalHackTool - Dumpert Process Dumper Default File
▣

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 Nov 2023 · 06:15 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-2023-36025Security Feature Bypass
cisaKEV-CVE-2023-36025
🔗

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-2023-36025US Government Resource
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