Report Date: 2026-06-05
New KEVs: 5 — unchanged vs last weekRansomware Victims: 140 ▼ -42 vs last week
5 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. Android products show the strongest concentration of risk signals this week. Ransomware activity is moderate with 140 new victims posted to leak sites over the last 7 days, with Thegentlemen posting the most victims.
Patch This Week
The top 3 KEVs to remediate right now, ranked by CISA deadline proximity, ransomware exploitation, and severity. These are confirmed exploited — if you do nothing else today, patch these.
- CVE-2024-21182 – Oracle WebLogic Server | CVSS 7.5 | EPSS 89.6% / 100th pct
CISA deadline: 2026-06-04 (overdue by 1d) — Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. - CVE-2025-48595 – Android Framework | CVSS 8.4 | EPSS 0.4% / 61th pct
CISA deadline: 2026-06-05 (0d remaining) — Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. - CVE-2022-0492 – Linux Kernel | CVSS 7.8 | EPSS 29.0% / 97th pct | PoC Available
CISA deadline: 2026-06-05 (0d remaining) — Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Top KEVs
Vulnerabilities confirmed actively exploited in the wild by CISA — ranked by ransomware use, then severity. Patch these before anything else.
New Today
- CVE-2026-28318 – SolarWinds Serv-U | CVSS 7.5 (HIGH) | AV: Network | EPSS 0.1% / 20th pct | Ransomware Use: No
Still Outstanding
- CVE-2026-45247 – Mirasvit Mirasvit Full Page Cache Warmer | CVSS 9.3 (CRITICAL) | AV: Network | EPSS 6.1% / 91th pct | Ransomware Use: No
- CVE-2025-48595 – Android Framework | CVSS 8.4 (HIGH) | AV: Local | EPSS 0.4% / 61th pct | Ransomware Use: No
- CVE-2022-0492 – Linux Kernel | CVSS 7.8 (HIGH) | AV: Local | EPSS 29.0% / 97th pct | Ransomware Use: No | PoC Available
- CVE-2024-21182 – Oracle WebLogic Server | CVSS 7.5 (HIGH) | AV: Network | EPSS 89.6% / 100th pct | Ransomware Use: No
Security News
Advisories, threat research, and incident reports from 12 sources across government, commercial research, and security journalism — prioritized by source credibility.
- CISA ICS AdvisoryAdvisory · yesterday – Hitachi Energy MACH HiDraw
View CSAF Summary Hitachi Energy is aware of a buffer overflow vulnerability that affects MACH HiDraw product versions listed in this document. Successful exploitation of this vulnerability could lead to a buffer overflo… - CISA ICS AdvisoryAdvisory · yesterday – Hitachi Energy RTU500
View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect RTU500 product versions listed in this document. If exploited, these vulnerabilities primarily impact product availability, with potential secondar… - CISA ICS AdvisoryAdvisory · yesterday – NAVTOR NavBox
View CSAF Summary Successful exploitation of this vulnerability could allow a local attacker to gain unauthorized access to SOAP methods, resulting in a disruption of operations. The following versions of NAVTOR NavBox a… - Unit 42Research · today – Threat Brief: Active Exploitation of PAN-OS CVE-2026-0257
We include indicators of activity and mitigations for PAN-OS vulnerability CVE-2026-0257. The post Threat Brief: Active Exploitation of PAN-OS CVE-2026-0257 appeared first on Unit 42 . - Unit 42Incident · 3 days ago – The npm Threat Landscape: Attack Surface and Mitigations (Updated June 2)
Unit 42 analyzes npm supply chain evolution post-Shai Hulud. Discover wormable malware, CI/CD persistence, multi-stage attacks and more. The post The npm Threat Landscape: Attack Surface and Mitigations (Updated June 2) … - Sophos X-OpsResearch · yesterday – You do surprise me.exe: An unexpected executable in Hola Browser
<p>Following a certification test, Sophos X-Ops found an unexpected guest had hitched a ride</p> Categories: Threat Research Tags: Crypto mining, Supply chain - Sophos X-OpsResearch · 3 days ago – Pointing a Cursor at evading detection
AI accelerated tool development and testing, but humans drove the workflow Categories: Threat Research Tags: AI, EDR - The RecordAdvisory · yesterday – Trump considers Palantir exec to lead CISA
Shyam Sankar, the chief technology officer at Palantir Technologies, has emerged as a lead contender for the long vacant Cybersecurity and Infrastructure Security Agency (CISA) director role, according to the sources, wh… - The RecordIncident · yesterday – Russia seeks to label two anti-Kremlin hacker groups as âextremistâ
The groups have previously claimed responsibility for cyberattacks targeting critical infrastructure and government institutions in Russia and Belarus. - Security Affairs (APT)News · 7 days ago – Meet GREYVIBE, the Russia-Linked Hacking Group Using AI to Target Ukraine and Still Making Rookie Mistakes
GREYVIBE, a Russia-linked group active since 2025, targets Ukraine with AI-assisted malware and five attack chains. Researchers say it’s part spy op, part crime gang. Security firm WithSecure has been tracking a pr… - Security Affairs (APT)Incident · 10 days ago – Nimbus Manticore Expanded Attacks With AI-Assisted Malware and Fake Zoom Installers
Nimbus Manticore accelerated cyberattacks during wartime, using AI-assisted malware, fake Zoom installers, and SEO poisoning. When the United States launched Operation Epic Fury against Iran at the end of February 2026, … - Security Affairs (Cybercrime)Incident · today – Silent Ransom Group (SRG): Switching To DNS Fast Flux Infrastructure
Researchers exposed the Silent Ransom Group ‘s Fast Flux infrastructure as the FBI warns of ongoing attacks targeting U.S. law firms and businesses. Resecurity uncovered the Silent Ransom Group (SRG)’s Fast F… - Security Affairs (Cybercrime)Incident · today – PCPJack Exposed: Researchers Uncover 230-Node Cloud Email Relay Network
Researchers uncovered a 230-node cloud-based email relay network after the actor PCPJack accidentally exposed tools, logs, and C2 files online A threat actor tracked as PCPJack compromised 230 cloud servers across Amazon… - Bleeping ComputerNews · today – Suspicious Polyfill login prompts pop up on Toshiba, Muji websites
Tech giant Toshiba and mega-retailer Muji warned visitors that suspicious sign-in screens popping up on their websites could collect credentials. […] - The Hacker NewsIncident · today – IronWorm and New Miasma Worm Variant Hit npm in Supply Chain Attacks
Multiple software supply chain attacks have hit the npm ecosystem, with threat actors using both malicious and poisoned versions of over 50 legitimate packages to distribute a Rust-based information stealer and a self-sp…
Ransomware Activity
Victim counts posted to ransomware group leak sites — use this to gauge which groups are most active and which sectors and regions are being targeted.
25 new victims posted today
7-day total: 140 via Ransomware.live
Infostealer Exposure: 2,434 employee credentials and 41,197 user credentials compromised via infostealer malware across victim organisations — indicating credential theft likely preceded these ransomware deployments.
Most Active Groups
Group Intelligence
- Thegentlemen — The Gentlemen is a RaaS group that emerged in July–August 2025, rapidly claiming over 320 victims across 17+ countries by offering affiliates a 90% revenue share, deploying a Go-based locker against Windows, Linux, NAS, and BSD systems; a compromised C2 server in 2026 revealed more than 1,570 linked victims.
- Qilin — Qilin ransomware was first observed in July of 2022. Qilin Ransomware is written in Golang and supports multiple encryption modes; all of which are controlled by the operator. Qilin actors practice double extortion – demanding payment for a decryptor, as well as for the non-release of stolen data.
- Incransom — INC Ransom is a prolific ransomware-as-a-service operation active since July 2023 that systematically targets healthcare, government, education, and manufacturing sectors in North America and Europe, having posted over 200 victims in 2025 alone with no sector off-limits.
- Akira — The Akira ransomware group is said to have emerged in March 2023, and there's much speculation about its ties to the former CONTI ransomware group.<br> <br> It's worth noting that with the end of CONTI's operation, several affiliates migrated to independent campaigns such as Royal, BlackBasta, and others.<br> <br> According to some reports, Akira affiliates also work with other ransomware operations, such as Snatch and BlackByte, as an open directory of tools used by an Akira operator was identified, which also had connections to the Snatch ransomware.<br> <br> The first version of the Akira ransomware was written in C++ and appended files with the '.akira' extension, creating a ransom note named 'akira_readme.txt,' partially based on the Conti V2 source code. However, on June 29, 2023, a decryptor for this version was reportedly released by Avast.<br> <br> Subsequently, a version was released that fixed the decryption flaw on July 2, 2023. Since then, the new version is said to be written in Rust, this time called 'megazord.exe,' and it changes the extension to '.powerranges' for encrypted files.<br> <br> Most of Akira's initial access vectors use brute-force attempts on Cisco VPN devices (which use single-factor authentication only).<br> Additionally, exploitation of CVEs: CVE-2019-6693 and CVE-2022-40684 for initial access has been identified.<BR>Source: https://github.com/crocodyli/ThreatActors-TTPs
- Genesis — Genesis is an emerging ransomware group first observed in late 2025, targeting small to mid-sized US organizations across healthcare, retail, financial services, legal, and manufacturing using double-extortion tactics, focusing heavily on data exfiltration and public leaking.
Most Targeted Sectors
Top Countries
US (45), DE (11), CA (6), BR (5), IN (5)
Notable Incidents
- www.elumax.com (Business Services · DE) — claimed by Krybit. Lumax is dedicated to maintaining high standards of ethics, corporate governance and effective accountability mechanisms… Press coverage →
- Krum Public Library (Public Sector · US) — claimed by Nightspire. – Financial Documents- HR Data- Supervisor's Information Press coverage →
Vendor-Specific Risks
Vendors with confirmed KEV exploitation this week — the stacked bar shows how that exposure breaks down across exploited CVEs (red), critical CVEs to watch (orange), and news mentions (yellow). Prioritize patching vendors with the largest red segment.
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