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Exploited vulnerabilities (CISA KEV)

CVEs with exploitation confirmed by CISA (Known Exploited Vulnerabilities), with required actions and deadlines.

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CVE-2021-41773 Critical · 9.8 KEV Urgent · 93 Public exploit Ransomware CWE-22 Oct 5, 2021
Apache HTTP Server Path Traversal Vulnerability
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.
CVE-2021-20035 Medium · 6.5 KEV High · 52 CWE-78 Sep 27, 2021
SonicWall SMA100 Appliances OS Command Injection Vulnerability
Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.
CVE-2021-40655 High · 7.5 KEV High · 60 Public exploit CWE-863 Sep 24, 2021
D-Link DIR-605 Router Information Disclosure Vulnerability
An informtion disclosure issue exists in D-LINK-DIR-605 B2 Firmware Version : 2.01MT. An attacker can obtain a user name and password by forging a post request to the / getcfg.php page
CVE-2021-22017 Medium · 5.3 KEV High · 60 Public exploit Sep 23, 2021
VMware vCenter Server Improper Access Control
Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to bypass proxy leading to internal endpoints being accessed.
CVE-2021-22941 Critical · 9.8 KEV Urgent · 79 Public exploit Ransomware CWE-284 Sep 23, 2021
Citrix ShareFile Improper Access Control Vulnerability
Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.
CVE-2021-22005 Critical · 9.8 KEV Urgent · 93 Public exploit Ransomware CWE-22 Sep 23, 2021
VMware vCenter Server File Upload Vulnerability
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.
CVE-2021-36260 Critical · 9.8 KEV Urgent · 83 Public exploit CWE-78 Sep 22, 2021
Hikvision Improper Input Validation
A command injection vulnerability in the web server of some Hikvision product. Due to the insufficient input validation, attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.
CVE-2021-38406 High · 7.8 KEV High · 56 CWE-787 Sep 17, 2021
Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability
Delta Electronic DOPSoft 2 (Version 2.00.07 and prior) lacks proper validation of user-supplied data when parsing specific project files. This could result in multiple out-of-bounds write instances. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVE-2021-40438 Critical · 9.0 KEV Urgent · 83 Public exploit Ransomware CWE-918 Sep 16, 2021
Apache HTTP Server-Side Request Forgery (SSRF)
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
CVE-2021-33044 Critical · 9.8 KEV Urgent · 73 Public exploit CWE-287 Sep 15, 2021
Dahua IP Camera Authentication Bypass Vulnerability
The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
CVE-2021-33045 Critical · 9.8 KEV Urgent · 73 Public exploit CWE-287 Sep 15, 2021
Dahua IP Camera Authentication Bypass Vulnerability
The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
CVE-2021-40444 High · 8.8 KEV Urgent · 94 Public exploit Ransomware CWE-22 Sep 15, 2021
Microsoft MSHTML Remote Code Execution Vulnerability
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.
CVE-2021-38648 High · 7.8 KEV High · 67 Public exploit Sep 15, 2021
Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability
Open Management Infrastructure Elevation of Privilege Vulnerability
CVE-2021-38649 High · 7.0 KEV High · 54 Sep 15, 2021
Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability
Open Management Infrastructure Elevation of Privilege Vulnerability
CVE-2021-38647 Critical · 9.8 KEV Urgent · 93 Public exploit Ransomware Sep 15, 2021
Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability
Open Management Infrastructure (OMI) Remote Code Execution Vulnerability
CVE-2021-38646 High · 7.8 KEV High · 65 Ransomware Sep 15, 2021
Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability
Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability
CVE-2021-38645 High · 7.8 KEV High · 54 Sep 15, 2021
Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability
Open Management Infrastructure Elevation of Privilege Vulnerability
CVE-2021-36955 High · 7.8 KEV Urgent · 71 Public exploit Ransomware Sep 15, 2021
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2021-38163 High · 8.8 KEV High · 62 Public exploit CWE-22 Sep 14, 2021
SAP NetWeaver Unrestricted File Upload Vulnerability
SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administrative user can upload a malicious file over a network and trigger its processing, which is capable of running operating system commands with the privilege of the Java Server process. These commands can be used to read or modify any information on the server or shut the server down making it unavailable.
CVE-2021-40870 Critical · 9.8 KEV Urgent · 73 Public exploit CWE-23 Sep 13, 2021
Aviatrix Controller Unrestricted Upload of File
An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.
CVE-2021-30713 High · 7.8 KEV High · 55 CWE-862 Sep 8, 2021
Apple macOS Unspecified Vulnerability
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..
CVE-2021-30663 High · 8.8 KEV High · 54 CWE-190 Sep 8, 2021
Apple Multiple Products WebKit Integer Overflow Vulnerability
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.
CVE-2021-30665 High · 8.8 KEV High · 54 CWE-787 Sep 8, 2021
Apple Multiple Products WebKit Memory Corruption Vulnerability
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..
CVE-2021-30657 Medium · 5.5 KEV Urgent · 71 Public exploit CWE-862 Sep 8, 2021
Apple macOS Unspecified Vulnerability
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..
CVE-2021-30666 High · 8.8 KEV High · 54 CWE-119 Sep 8, 2021
Apple iOS WebKit Buffer Overflow Vulnerability
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..