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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-2021-30661 High · 8.8 KEV High · 55 CWE-416 Sep 8, 2021
Apple Multiple Products WebKit Storage Use-After-Free Vulnerability
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..
CVE-2021-30761 High · 8.8 KEV High · 55 CWE-787 Sep 8, 2021
Apple iOS WebKit Memory Corruption Vulnerability
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..
CVE-2021-30762 High · 8.8 KEV High · 55 CWE-416 Sep 8, 2021
Apple iOS WebKit Use-After-Free Vulnerability
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..
CVE-2021-40539 Critical · 9.8 KEV Urgent · 93 Public exploit Ransomware CWE-706 Sep 7, 2021
Zoho ManageEngine ADSelfService Plus Authentication Bypass Vulnerability
Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execution.
CVE-2021-28550 High · 8.8 KEV High · 56 CWE-416 Sep 2, 2021
Adobe Acrobat and Reader Use-After-Free Vulnerability
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2021-37415 Critical · 9.8 KEV High · 67 Public exploit CWE-306 Sep 1, 2021
Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability
Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication.
CVE-2021-26084 Critical · 9.8 KEV Urgent · 100 Public exploit Ransomware CWE-917 Aug 30, 2021
Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability
In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.
CVE-2021-32648 Critical · 9.1 KEV Urgent · 73 Public exploit CWE-287 Aug 26, 2021
October CMS Improper Authentication
octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an attacker can request an account password reset and then gain access to the account using a specially crafted request. The issue has been patched in Build 472 and v1.1.5.
CVE-2021-31010 High · 7.5 KEV High · 57 CWE-502 Aug 24, 2021
Apple iOS, macOS, watchOS Sandbox Bypass Vulnerability
A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was aware of a report that this issue may have been actively exploited at the time of release..
CVE-2021-30983 High · 7.8 KEV High · 54 CWE-120 Aug 24, 2021
Apple iOS and iPadOS Buffer Overflow Vulnerability
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
CVE-2021-30952 High · 7.8 KEV High · 55 CWE-190 Aug 24, 2021
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.
CVE-2021-30900 High · 7.8 KEV High · 55 CWE-787 Aug 24, 2021
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
CVE-2021-30883 High · 7.8 KEV High · 55 CWE-787 Aug 24, 2021
Apple Multiple Products Memory Corruption Vulnerability
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..
CVE-2021-30869 High · 7.8 KEV High · 55 CWE-843 Aug 24, 2021
Apple iOS, iPadOS, and macOS Type Confusion Vulnerability
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
CVE-2021-30860 High · 7.8 KEV High · 62 Public exploit CWE-190 Aug 24, 2021
Apple Multiple Products Integer Overflow Vulnerability
An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
CVE-2021-30858 High · 8.8 KEV High · 61 Public exploit CWE-416 Aug 24, 2021
Apple iOS, iPadOS, macOS Use-After-Free Vulnerability
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. 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-2021-39144 High · 8.5 KEV Urgent · 72 Public exploit CWE-306 Aug 23, 2021
XStream Remote Code Execution Vulnerability
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
CVE-2021-35395 Critical · 9.8 KEV High · 67 Public exploit Aug 16, 2021
Realtek AP-Router SDK Buffer Overflow Vulnerability
Realtek Jungle SDK version v2.x up to v3.4.14B provides an HTTP web server exposing a management interface that can be used to configure the access point. Two versions of this management interface exists: one based on Go-Ahead named webs and another based on Boa named boa. Both of them are affected by these vulnerabilities. Specifically, these binaries are vulnerable to the following issues: - stack buffer overflow in formRebootCheck due to unsafe copy of submit-url parameter - stack buffer overflow in formWsc due to unsafe copy of submit-url parameter - stack buffer overflow in formWlanMultipleAP due to unsafe copy of submit-url parameter - stack buffer overflow in formWlSiteSurvey due to unsafe copy of ifname parameter - stack buffer overflow in formStaticDHCP due to unsafe copy of hostname parameter - stack buffer overflow in formWsc due to unsafe copy of 'peerPin' parameter - arbitrary command execution in formSysCmd via the sysCmd parameter - arbitrary command injection in formWsc via the 'peerPin' parameter Exploitability of identified issues will differ based on what the end vendor/manufacturer did with the Realtek SDK webserver. Some vendors use it as-is, others add their own authentication implementation, some kept all the features from the server, some remove some of them, some inserted their own set of features. However, given that Realtek SDK implementation is full of insecure calls and that developers tends to re-use those examples in their custom code, any binary based on Realtek SDK webserver will probably contains its own set of issues on top of the Realtek ones (if kept). Successful exploitation of these issues allows remote attackers to gain arbitrary code execution on the device.
CVE-2021-35394 Critical · 9.8 KEV High · 67 Public exploit CWE-78 Aug 16, 2021
Realtek Jungle SDK Remote Code Execution Vulnerability
Realtek Jungle SDK version v2.x up to v3.4.14B provides a diagnostic tool called 'MP Daemon' that is usually compiled as 'UDPServer' binary. The binary is affected by multiple memory corruption vulnerabilities and an arbitrary command injection vulnerability that can be exploited by remote unauthenticated attackers.
CVE-2021-26086 Medium · 5.3 KEV Urgent · 74 Public exploit CWE-22 Aug 15, 2021
Atlassian Jira Server and Data Center Path Traversal Vulnerability
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.
CVE-2021-36380 Critical · 9.8 KEV High · 67 Public exploit CWE-78 Aug 13, 2021
Sunhillo SureLine OS Command Injection Vulnerablity
Sunhillo SureLine before 8.7.0.1.1 allows Unauthenticated OS Command Injection via shell metacharacters in ipAddr or dnsAddr /cgi/networkDiag.cgi.
CVE-2021-36942 High · 7.5 KEV Urgent · 81 Public exploit Ransomware Aug 12, 2021
Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability
Windows LSA Spoofing Vulnerability
CVE-2021-36948 High · 7.8 KEV High · 56 Aug 12, 2021
Microsoft Windows Update Medic Service Privilege Escalation Vulnerability
Windows Update Medic Service Elevation of Privilege Vulnerability
CVE-2021-34486 High · 7.8 KEV High · 61 Public exploit CWE-416 Aug 12, 2021
Microsoft Windows Event Tracing Privilege Escalation Vulnerability
Windows Event Tracing Elevation of Privilege Vulnerability
CVE-2021-34484 High · 7.8 KEV High · 56 Aug 12, 2021
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
Windows User Profile Service Elevation of Privilege Vulnerability