Patchfirst
CVE-2022-44698 KEVRansomware Medium · 5.4 EPSS 76.3%

Microsoft Defender SmartScreen Security Feature Bypass Vulnerability

Microsoft · Defender

Summary

A security feature bypass vulnerability exists in Microsoft Defender's SmartScreen component, which is part of the Windows SmartScreen protection feature, and it stems from improper handling of exceptional conditions. An unauthenticated remote attacker who can get a user to interact with a crafted resource can bypass SmartScreen's protections, with the bypass yielding limited integrity and availability impact.

Official description · NVD

Windows SmartScreen Security Feature Bypass Vulnerability

Breakdown
75.6 / 100
Exploited
Yes, in CISA KEV
Reports
1
Tactics
2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited the day it was disclosed.

  1. DisclosedFirst seen exploitedVulnCheck KEV evidenceAdded to CISA KEVknown ransomware use; EU database agreesday 0

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

ExecutionTA0002

Malicious File T1204.002 Medium
AI mapping from the description · how it is exploited

Requires user to open malicious file

Windows SmartScreen Security Feature Bypass Vulnerability
From the official description (NVD) Original (opens in a new tab) ↗

Stealth

Exploitation for Stealth T1211 Medium
AI mapping from the description · primary impact

Bypasses SmartScreen security feature

Windows SmartScreen Security Feature Bypass Vulnerability
From the official description (NVD) Original (opens in a new tab) ↗

Detection

0 rules for this CVE · 43 general rules for its techniques

Rules for this CVE

0 that reference CVE-2022-44698 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Named in 1 threat report
1 reportTrustwave

Reports are matched by finding the exact id CVE-2022-44698 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

2 links, grouped by NVD tag (1 duplicate merged)
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