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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 88 of 89

CVE-2021-34448

Microsoft Windows Scripting Engine Memory Corruption Vulnerability

Microsoft · Windows · Added: 2021-11-03

Microsoft Windows Scripting Engine contains an unspecified vulnerability that allows for memory corruption.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-34473Confirmed 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.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-34523Confirmed ransomware campaign use

Microsoft Exchange Server Privilege Escalation Vulnerability

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

Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-34527Confirmed ransomware campaign use

Microsoft Windows Print Spooler Remote Code Execution Vulnerability

Microsoft · Windows · Added: 2021-11-03

Microsoft Windows Print Spooler contains an unspecified vulnerability due to the Windows Print Spooler service improperly performing privileged file operations. Successful exploitation allows an attacker to perform remote code execution with SYSTEM privileges. The vulnerability is also known under the moniker of PrintNightmare.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-35211Confirmed ransomware campaign use

SolarWinds Serv-U Remote Code Execution Vulnerability

SolarWinds · Serv-U · Added: 2021-11-03

SolarWinds Serv-U contains an unspecified memory escape vulnerability which can allow for remote code execution.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-35395

Realtek AP-Router SDK Buffer Overflow Vulnerability

Realtek · AP-Router SDK · Added: 2021-11-03

Realtek AP-Router SDK HTTP web server boa contains a buffer overflow vulnerability due to unsafe copies of some overly long parameters submitted in the form that lead to denial-of-service (DoS).

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-35464Confirmed ransomware campaign use

ForgeRock Access Management (AM) Core Server Remote Code Execution Vulnerability

ForgeRock · Access Management (AM) · Added: 2021-11-03

ForgeRock Access Management (AM) Core Server allows an attacker who sends a specially crafted HTTP request to one of three endpoints (/ccversion/Version, /ccversion/Masthead, or /ccversion/ButtonFrame) to execute code in the context of the current user (unless ForgeRock AM is running as root user, which the vendor does not recommend).

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-36741

Trend Micro Multiple Products Improper Input Validation Vulnerability

Trend Micro · Apex One, Apex One as a Service, and Worry-Free Business Security · Added: 2021-11-03

Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security contain an improper input validation vulnerability that allows a remote attacker to upload files.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-36742

Trend Micro Multiple Products Improper Input Validation Vulnerability

Trend Micro · Apex One, Apex One as a Service, and Worry-Free Business Security · Added: 2021-11-03

Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security contain an improper input validation vulnerability that allows for privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-36942Confirmed ransomware campaign use

Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability

Microsoft · Windows · Added: 2021-11-03

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability allowing an unauthenticated attacker to call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-36948

Microsoft Windows Update Medic Service Privilege Escalation Vulnerability

Microsoft · Windows · Added: 2021-11-03

Microsoft Windows Update Medic Service contains an unspecified vulnerability that allows for privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-36955Confirmed ransomware campaign use

Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

Microsoft · Windows · Added: 2021-11-03

Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-37973

Google Chromium Portals Use-After-Free Vulnerability

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

Google Chromium Portals 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 affects web browsers that utilize Chromium, including Google Chrome and Microsoft Edge.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-37975

Google Chromium V8 Use-After-Free Vulnerability

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

Google Chromium V8 Engine 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-2021-37976

Google Chromium Information Disclosure Vulnerability

Google · Chromium · Added: 2021-11-03

Google Chromium contains an information disclosure vulnerability within the core memory component that allows a remote attacker to obtain potentially sensitive information from process memory 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-2021-38000

Google Chromium Intents Improper Input Validation Vulnerability

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

Google Chromium Intents contains an improper input validation vulnerability that allows a remote attacker to arbitrarily browser to a malicious URL 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-2021-38003

Google Chromium V8 Memory Corruption Vulnerability

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

Google Chromium V8 Engine has a bug in JSON.stringify, where the internal TheHole value can leak to script code, causing memory corruption. 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-2021-38645

Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability

Microsoft · Open Management Infrastructure (OMI) · Added: 2021-11-03

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-38647Confirmed ransomware campaign use

Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

Microsoft · Open Management Infrastructure (OMI) · Added: 2021-11-03

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing remote code execution.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
CVE-2021-38648

Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability

Microsoft · Open Management Infrastructure (OMI) · Added: 2021-11-03

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing privilege escalation.

CISA recommended action

Apply updates per vendor instructions.

CVE details ↗
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