CVE-2024-21413
Confirmed PUBLISHEDMicrosoft Outlook Remote Code Execution Vulnerability
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Microsoft Outlook Remote Code Execution Vulnerability
- CVE Published
- Feb 13, 2024
- Exploitation Reported
- Feb 06, 2025
- CVSS
- 9.8 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft |
Microsoft Office 2019
|
19.0.0 to < https://aka.ms/OfficeSecurityReleases |
Affected |
| Microsoft |
Microsoft 365 Apps for Enterprise
|
16.0.1 to < https://aka.ms/OfficeSecurityReleases |
Affected |
| Microsoft |
Microsoft Office LTSC 2021
|
16.0.1 to < https://aka.ms/OfficeSecurityReleases |
Affected |
| Microsoft |
Microsoft Office 2016
|
16.0.0 to < 16.0.5435.1001 |
Affected |
CVE References
- Microsoft Outlook Remote Code Execution Vulnerability msrc.microsoft.com · Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21413
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 | 2025-02-06 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:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Exploitation Status
Exploited in the wild
Recorded 2025-02-06 00:00:00 UTC · CISA
Proof of concept available
Recorded 2024-08-31 13:18:43 UTC · GitHub
Weaknesses (CWE)
-
Improper Input Validation
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/190541 | Jun 02, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2024-12-04 10:26:37 UTC · 2 stars
github · Created 2024-08-31 13:18:43 UTC · 13 stars
CVE-2024-21413 | Microsoft Outlook Remote Code Execution Vulnerability PoC
github · Created 2024-05-03 16:09:54 UTC · 2 stars
CVE-2024-21413 Microsoft Outlook RCE Exploit
github · Created 2024-02-29 10:07:34 UTC · 2 stars
github · Created 2024-02-23 12:13:11 UTC · 4 stars
Bu betik, Microsoft Outlook'ta keşfedilen ve CVSS değeri 9.8 olan önemli bir güvenlik açığı olan CVE-2024-21413 için bir kavram kanıtı (PoC) sunmaktadır. MonikerLink hatası olarak adlandırılan bu güvenlik açığı, yerel NTLM bilgilerinin potansiyel sızıntısı ve uzaktan kod çalıştırma olasılığı dahil olmak üzere geniş kapsamlı etkilere sahiptir.
github · Created 2024-02-20 12:41:15 UTC · 6 stars
github · Created 2024-02-17 14:52:52 UTC · 87 stars
CVE-2024-21413 PoC for THM Lab
github · Created 2024-02-16 21:10:31 UTC · 16 stars
Microsoft Outlook Information Disclosure Vulnerability (leak password hash) - CVE-2024-21413 POC
github · Created 2024-02-16 15:17:59 UTC · 726 stars
Microsoft-Outlook-Remote-Code-Execution-Vulnerability
github · Created 2024-02-15 19:57:38 UTC · 154 stars
Microsoft Outlook Information Disclosure Vulnerability (leak password hash) - Expect Script POC
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:25 UTC about 1 year ago09:25 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC over 1 year ago00:00 UTC · over 1 year ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
19:57 UTC over 2 years ago19:57 UTC · over 2 years ago
Public PoC available
Public proof-of-concept code published
-
18:02 UTC over 2 years ago18:02 UTC · over 2 years ago
CVE published
Vulnerability disclosed publicly
-
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-2024-21413
{
"cve_id": "CVE-2024-21413",
"title": "Microsoft Outlook Remote Code Execution Vulnerability",
"affected_vendor": "Microsoft",
"affected_product": "Microsoft Office 2019, Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office 2016",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}