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Ransomware Intelligence

CISA flags a vulnerability as "used by ransomware" only when a campaign is confirmed. These are flaws extortion groups have already exploited: fixing them first removes the most concrete risk.

361
CVEs used by ransomware · 21% of the KEV catalog
3
added in the last 90 days
173
critical
229
victims posted (30 days)
410
groups tracked

Most active groups (30 days)

Victims posted on leak sites, according to ransomware.live. Victim names are not displayed.

GroupVictimsLast activity
N0n 63 14h
thegentlemen 31 1d
qilin 21 1d
Wallstreet 15 1d
lockbit5 9 9h
play 9 1d
incransom 7 1d
THE SEVEN DEADLY SINS 7 1d
everest 7 17h
iah6477 7 2d
akira 6 2d
interlock 6 5d

Most affected countries (30 days)

  • United States70
  • Brazil15
  • South Korea11
  • Sweden10
  • United Kingdom8
  • Japan6
  • Spain5
  • Germany5
  • India5
  • Australia4

Most affected sectors (30 days)

  • Transportation32
  • Professional Services27
  • Healthcare25
  • Manufacturing25
  • Technology21
  • Other14
  • Financial Services11
  • Retail & E-Commerce10
  • Agriculture and Food Production8
  • Energy & Utilities6

Groups and the CVEs they exploit

clop 5akira 3alphv 3conti 3hive 3play 3medusa 2vicesociety 2atomsilo 1blackbyte 1blackshadow 1BrainCipher 1esxiargs 1frag 1handala 1icefire 1incransom 1karma 1lockbit 1maze 1nightsky 1nightspire 1nokoyawa 1revil 1reynolds 1underground 1

CVEs used in ransomware campaigns

Severity
Clear

15 result(s)

CVE-2026-15410 High · 7.2 KEV Urgent · 71 Public exploit Ransomware CWE-94 Jul 14, 2026
SonicWall SMA1000 Appliances Code Injection Vulnerability
Post-authentication improper control of generation of code ('Code Injection') vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands.
CVE-2026-15409 Critical · 10.0 KEV Urgent · 92 Public exploit Ransomware CWE-918 Jul 14, 2026
SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A remote unauthenticated attacker could potentially cause the appliance to make requests to unintended location.
CVE-2024-53704 Critical · 9.8 KEV Urgent · 83 Public exploit Ransomware CWE-287 Jan 9, 2025
SonicWall SonicOS SSLVPN Improper Authentication Vulnerability
An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.
CVE-2025-23006 Critical · 9.8 KEV Urgent · 73 Ransomware CWE-502 Jan 23, 2025
SonicWall SMA1000 Appliances Deserialization Vulnerability
Pre-authentication deserialization of untrusted data vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) and Central Management Console (CMC), which in specific conditions could potentially enable a remote unauthenticated attacker to execute arbitrary OS commands.
CVE-2024-40766 Critical · 9.8 KEV Urgent · 73 Ransomware CWE-284 Aug 23, 2024
SonicWall SonicOS Improper Access Control Vulnerability
An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash. This issue affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions.
CVE-2021-45046 Critical · 9.0 KEV Urgent · 90 Public exploit Ransomware CWE-917 Dec 14, 2021
Apache Log4j2 Deserialization of Untrusted Data Vulnerability
It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
CVE-2021-20028 Critical · 9.8 KEV Urgent · 73 Ransomware CWE-89 Aug 4, 2021
SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability
Improper neutralization of a SQL Command leading to SQL Injection vulnerability impacting end-of-life Secure Remote Access (SRA) products, specifically the SRA appliances running all 8.x firmware and 9.0.0.9-26sv or earlier
CVE-2020-5135 Critical · 9.8 KEV Urgent · 73 Ransomware CWE-120 Oct 12, 2020
SonicWall SonicOS Buffer Overflow Vulnerability
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.
CVE-2021-20038 Critical · 9.8 KEV Urgent · 83 Public exploit Ransomware CWE-121 Dec 8, 2021
SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability
A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances firmware 10.2.0.8-37sv, 10.2.1.1-19sv, 10.2.1.2-24sv and earlier versions.
CVE-2021-44228 Critical · 10.0 KEV Urgent · 100 Public exploit Ransomware CWE-20 Dec 10, 2021
Apache Log4j2 Remote Code Execution Vulnerability
Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.
CVE-2021-20016 Critical · 9.8 KEV Urgent · 73 Ransomware CWE-89 Feb 4, 2021
SonicWall SSLVPN SMA100 SQL Injection Vulnerability
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.
CVE-2021-20023 Medium · 4.9 KEV High · 66 Ransomware CWE-22 Apr 20, 2021
SonicWall Email Security Path Traversal Vulnerability
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.
CVE-2021-20022 High · 7.2 KEV High · 69 Ransomware CWE-434 Apr 9, 2021
SonicWall Email Security Unrestricted Upload of File Vulnerability
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.
CVE-2019-7481 High · 7.5 KEV Urgent · 73 Public exploit Ransomware CWE-89 Dec 17, 2019
SonicWall SMA100 SQL Injection Vulnerability
Vulnerability in SonicWall SMA100 allow unauthenticated user to gain read-only access to unauthorized resources. This vulnerablity impacted SMA100 version 9.0.0.3 and earlier.
CVE-2021-20021 Critical · 9.8 KEV Urgent · 83 Public exploit Ransomware CWE-269 Apr 9, 2021
SonicWall Email Security Improper Privilege Management Vulnerability
A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.

Sources: CISA KEV (knownRansomwareCampaignUse field) and ransomware.live (groups, TTPs and victim counts). The absence of a KEV flag does not mean a flaw is not used by ransomware.