CVE-2024-21351
Confirmed PUBLISHEDWindows SmartScreen Security Feature Bypass Vulnerability
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Windows SmartScreen Security Feature Bypass Vulnerability
- CVE Published
- Feb 13, 2024
- Exploitation Reported
- Feb 13, 2024
- CVSS
- 7.6 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft |
Windows 11 Version 23H2
|
10.0.22631.0 to < 10.0.22631.3155 |
Affected |
| Microsoft |
Windows 11 version 22H3
|
10.0.22631.0 to < 10.0.22631.3155 |
Affected |
| Microsoft |
Windows 10 Version 1809
|
10.0.17763.0 to < 10.0.17763.5458 |
Affected |
| Microsoft |
Windows 10 Version 1809
|
10.0.0 to < 10.0.17763.5458 |
Affected |
| Microsoft |
Windows Server 2019
|
10.0.17763.0 to < 10.0.17763.5458 |
Affected |
| Microsoft |
Windows Server 2022
|
10.0.20348.0 to < 10.0.20348.2322 |
Affected |
| Microsoft |
Windows 11 version 21H2
|
10.0.0 to < 10.0.22000.2777 |
Affected |
| Microsoft |
Windows 10 Version 21H2
|
10.0.19043.0 to < 10.0.19044.4046 |
Affected |
| Microsoft |
Windows 11 version 22H2
|
10.0.22621.0 to < 10.0.22621.3155 |
Affected |
| Microsoft |
Windows 10 Version 22H2
|
10.0.19045.0 to < 10.0.19045.4046 |
Affected |
| Microsoft |
Windows 10 Version 1507
|
10.0.10240.0 to < 10.0.10240.20469 |
Affected |
| Microsoft |
Windows 10 Version 1607
|
10.0.14393.0 to < 10.0.14393.6709 |
Affected |
| Microsoft |
Windows Server 2016
|
10.0.14393.0 to < 10.0.14393.6709 |
Affected |
CVE References
- Windows SmartScreen Security Feature Bypass Vulnerability msrc.microsoft.com · Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21351
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2024-02-13 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L/E:U/RL:O/RC:C
Exploitation Status
Exploited in the wild
Recorded 2024-02-13 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Improper Control of Generation of Code ('Code Injection')
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/190492 | Jun 02, 2025 |
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:26 UTC about 1 year ago09:26 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
18:02 UTC over 2 years ago18:02 UTC · over 2 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 2 years ago00:00 UTC · over 2 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
22:45 UTC over 2 years ago22:45 UTC · over 2 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2024-21351
{
"cve_id": "CVE-2024-21351",
"title": "Windows SmartScreen Security Feature Bypass Vulnerability",
"affected_vendor": "Microsoft",
"affected_product": "Windows 11 Version 23H2, Windows 11 version 22H3, Windows 10 Version 1809, Windows Server 2019, Windows Server 2022, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 11 version 22H2, Windows 10 Version 22H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.6,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}