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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
305
victims posted (30 days)
410
groups tracked

Vendors most exploited by ransomware

Most common weaknesses (CWE)

By year added to KEV

Most active groups (30 days)

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

GroupVictimsLast activity
N0n 87 9h
qilin 36 20h
thegentlemen 35 3d
Wallstreet 15 4d
lockbit5 10 21h
play 9 3d
iah6477 8 2d
incransom 8 1d
Helix 7 1d
everest 7 3d
THE SEVEN DEADLY SINS 7 4d
akira 6 5d
All groups →

Most affected countries (30 days)

  • United States107
  • Brazil16
  • South Korea12
  • United Kingdom10
  • Sweden10
  • Germany9
  • Spain6
  • Japan6
  • India6
  • Singapore5

Most affected sectors (30 days)

  • Transportation38
  • Manufacturing35
  • Professional Services34
  • Healthcare31
  • Technology28
  • Other18
  • Retail & E-Commerce15
  • Financial Services14
  • Education10
  • Energy & Utilities9

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

31 result(s)

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-2024-55591 Critical · 9.8 KEV Urgent · 83 Public exploit Ransomware CWE-288 Jan 14, 2025
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.
CVE-2023-48365 Critical · 9.9 KEV Urgent · 70 Ransomware CWE-444 Nov 15, 2023
Qlik Sense HTTP Tunneling Vulnerability
Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683. Due to improper validation of HTTP headers, a remote attacker is able to elevate their privilege by tunneling HTTP requests, allowing them to execute HTTP requests on the backend server that hosts the repository application. The fixed versions are August 2023 Patch 2, May 2023 Patch 6, February 2023 Patch 10, November 2022 Patch 12, August 2022 Patch 14, May 2022 Patch 16, February 2022 Patch 15, and November 2021 Patch 17. NOTE: this issue exists because of an incomplete fix for CVE-2023-41265.
CVE-2025-0282 Critical · 9.0 KEV Urgent · 88 Public exploit Ransomware CWE-787 Jan 8, 2025
Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.5, Ivanti Policy Secure before version 22.7R1.2, and Ivanti Neurons for ZTA gateways before version 22.7R2.3 allows a remote unauthenticated attacker to achieve remote code execution.
CVE-2024-41713 Critical · 9.1 KEV Urgent · 83 Public exploit Ransomware CWE-22 Oct 21, 2024
Mitel MiCollab Path Traversal Vulnerability
A vulnerability in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab through 9.8 SP1 FP2 (9.8.1.201) could allow an unauthenticated attacker to conduct a path traversal attack, due to insufficient input validation. A successful exploit could allow unauthorized access, enabling the attacker to view, corrupt, or delete users' data and system configurations.
CVE-2024-55550 Low · 2.7 KEV High · 67 Public exploit Ransomware CWE-22 Dec 10, 2024
Mitel MiCollab Path Traversal Vulnerability
Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative privilege to conduct a local file read, due to insufficient input sanitization. A successful exploit could allow the authenticated admin attacker to access resources that are constrained to the admin access level, and the disclosure is limited to non-sensitive system information. This vulnerability does not allow file modification or privilege escalation.

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.