Known exploited vulnerabilities
Vulnerabilities CISA has confirmed are being exploited, newest additions first — with the remediation deadline federal agencies must meet.
| Score | CVE | Affected | EPSS | Added to KEV |
|---|---|---|---|---|
| 9.6 critical | CVE-2021-30633 KEV | Google Chrome Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. | 33% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30632 KEV | Google Chrome Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. | 63% | 3 Nov 2021 |
| 9.8 critical | CVE-2021-42013 KEV | Apache Software Foundation Apache HTTP Server It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue only affects Apache 2.4.49 and Apache 2.4.50 and not earlier versions. | >99% | 3 Nov 2021 |
| 9.8 critical | CVE-2021-41773 KEV | Apache Software Foundation Apache HTTP Server A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013. | >99% | 3 Nov 2021 |
| 9.8 critical | CVE-2021-22005 KEV | VMware vCenter Server, VMware Cloud Foundation The vCenter Server contains an arbitrary file upload vulnerability in the Analytics service. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to execute code on vCenter Server by uploading a specially crafted file. | >99% | 3 Nov 2021 |
| 8.8 high | CVE-2021-40444 KEV | Microsoft Windows 10 Version 1507 Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents. An attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Microsoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: “Suspicious Cpl File Execution”. Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. UPDATE September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system. | 97% | 3 Nov 2021 |
| 7.0 high | CVE-2021-38649 KEV | Microsoft Azure Automation State Configuration, DSC Extension Open Management Infrastructure Elevation of Privilege Vulnerability | 2.9% | 3 Nov 2021 |
| 7.8 high | CVE-2021-38648 KEV | Microsoft Azure Automation State Configuration, DSC Extension Open Management Infrastructure Elevation of Privilege Vulnerability | 11% | 3 Nov 2021 |
| 9.8 critical | CVE-2021-38647 KEV | Microsoft Azure Automation State Configuration, DSC Extension Open Management Infrastructure (OMI) Remote Code Execution Vulnerability | >99% | 3 Nov 2021 |
| 7.8 high | CVE-2021-38645 KEV | Microsoft Azure Automation State Configuration, DSC Extension Open Management Infrastructure Elevation of Privilege Vulnerability | 2.7% | 3 Nov 2021 |
| 7.8 high | CVE-2021-36955 KEV | Microsoft Windows 10 Version 1507 Windows Common Log File System Driver Elevation of Privilege Vulnerability | 4.1% | 3 Nov 2021 |
| 7.8 high | CVE-2021-30713 KEV | Apple macOS A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass Privacy preferences. Apple is aware of a report that this issue may have been actively exploited.. | 7.0% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30666 KEV | Apple iOS A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.5.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.. | 3.0% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30665 KEV | Apple macOS A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.. | 3.7% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30663 KEV | Apple macOS An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. | 3.5% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30661 KEV | Apple iOS and iPadOS A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.. | 4.5% | 3 Nov 2021 |
| 5.5 medium | CVE-2021-30657 KEV | Apple macOS A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application may bypass Gatekeeper checks. Apple is aware of a report that this issue may have been actively exploited.. | 69% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30762 KEV | Apple iOS A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.5.4. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.. | 11% | 3 Nov 2021 |
| 8.8 high | CVE-2021-30761 KEV | Apple iOS A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 12.5.4. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.. | 11% | 3 Nov 2021 |
| 9.8 critical | CVE-2021-40539 KEV | zohocorp manageengine adselfservice plus Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execution. | 99% | 3 Nov 2021 |