Free live email checks are available. Continuous monitoring and account alerts are not yet active.

CyberSigur / Security Intelligence

Known exploited vulnerabilities

Browse CISA's Known Exploited Vulnerabilities catalog. Search by CVE, vendor, or product. Information is published by the US Cybersecurity and Infrastructure Security Agency.

Official CISA source ↗CISA updated: 2026-10-30

1,766 vulnerabilities · Page 86 of 89

CVE-2021-27065Confirmed ransomware campaign use

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft · Exchange Server · Added: 2021-11-03

Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27085

Microsoft Internet Explorer Remote Code Execution Vulnerability

Microsoft · Internet Explorer · Added: 2021-11-03

Microsoft Internet Explorer contains an unspecified vulnerability that allows for remote code execution.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27101Confirmed ransomware campaign use

Accellion FTA SQL Injection Vulnerability

Accellion · FTA · Added: 2021-11-03

Accellion FTA contains a SQL injection vulnerability exploited via a crafted host header in a request to document_root.html.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27102Confirmed ransomware campaign use

Accellion FTA OS Command Injection Vulnerability

Accellion · FTA · Added: 2021-11-03

Accellion FTA contains an OS command injection vulnerability exploited via a local web service call.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27103Confirmed ransomware campaign use

Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability

Accellion · FTA · Added: 2021-11-03

Accellion FTA contains a server-side request forgery (SSRF) vulnerability exploited via a crafted POST request to wmProgressstat.html.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27104Confirmed ransomware campaign use

Accellion FTA OS Command Injection Vulnerability

Accellion · FTA · Added: 2021-11-03

Accellion FTA contains an OS command injection vulnerability exploited via a crafted POST request to various admin endpoints.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27561

Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability

Yealink · Device Management · Added: 2021-11-03

Yealink Device Management contains a server-side request forgery (SSRF) vulnerability that allows for unauthenticated remote code execution.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-27562

Arm Trusted Firmware Out-of-Bounds Write Vulnerability

Arm · Trusted Firmware · Added: 2021-11-03

Arm Trusted Firmware contains an out-of-bounds write vulnerability allowing the non-secure (NS) world to trigger a system halt, overwrite secure data, or print out secure data when calling secure functions under the non-secure processing environment (NSPE) handler mode. This vulnerability affects Yealink Device Management servers.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-28310

Microsoft Win32k Privilege Escalation Vulnerability

Microsoft · Win32k · Added: 2021-11-03

Microsoft Windows Win32k contains an unspecified vulnerability that allows for privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-28550

Adobe Acrobat and Reader Use-After-Free Vulnerability

Adobe · Acrobat and Reader · Added: 2021-11-03

Adobe Acrobat and Reader contains a use-after-free vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-28663

Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability

Arm · Mali Graphics Processing Unit (GPU) · Added: 2021-11-03

Arm Mali Graphics Processing Unit (GPU) kernel driver contains a use-after-free vulnerability that may allow a non-privileged user to make improper operations on GPU memory to gain root privilege, and/or disclose information.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-28664

Arm Mali Graphics Processing Unit (GPU) Unspecified Vulnerability

Arm · Mali Graphics Processing Unit (GPU) · Added: 2021-11-03

Arm Mali Graphics Processing Unit (GPU) kernel driver contains an unspecified vulnerability that may allow a non-privileged user to gain write access to read-only memory, gain root privilege, corrupt memory, and modify the memory of other processes.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30116Confirmed ransomware campaign use

Kaseya Virtual System/Server Administrator (VSA) Information Disclosure Vulnerability

Kaseya · Virtual System/Server Administrator (VSA) · Added: 2021-11-03

Kaseya Virtual System/Server Administrator (VSA) contains an information disclosure vulnerability allowing an attacker to obtain the sessionId that can be used to execute further attacks against the system.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30551

Google Chromium V8 Type Confusion Vulnerability

Google · Chromium V8 · Added: 2021-11-03

Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30554

Google Chromium WebGL Use-After-Free Vulnerability

Google · Chromium WebGL · Added: 2021-11-03

Google Chromium WebGL contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30563

Google Chromium V8 Type Confusion Vulnerability

Google · Chromium V8 · Added: 2021-11-03

Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30632

Google Chromium V8 Out-of-Bounds Write Vulnerability

Google · Chromium V8 · Added: 2021-11-03

Google Chromium V8 Engine contains an out-of-bounds write vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30633

Google Chromium Indexed DB API Use-After-Free Vulnerability

Google · Chromium Indexed DB API · Added: 2021-11-03

Google Chromium Indexed DB API contains a use-after-free vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30657

Apple macOS Unspecified Vulnerability

Apple · macOS · Added: 2021-11-03

Apple macOS contains an unspecified logic issue in System Preferences that may allow a malicious application to bypass Gatekeeper checks.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-30661

Apple Multiple Products WebKit Storage Use-After-Free Vulnerability

Apple · Multiple Products · Added: 2021-11-03

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit Storage contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
Back to CyberSigur ←