Report Date: 2026-10-08
New KEVs: 3 ▼ -4 vs last weekRansomware Victims: 147 ▲ +147 vs last week
3 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. Zammad Gmbh products show the strongest concentration of risk signals this week. Ransomware activity is moderate with 147 new victims posted to leak sites over the last 7 days, with Qilin 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-2026-102490 – Zammad GmbH Zammad | CVSS 9.4 | EPSS 0.6% / 48th pct
CISA deadline: 2026-10-05 (overdue by 3d) — Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. - CVE-2026-102489 – Zammad GmbH Zammad | CVSS 9.4 | EPSS 1.4% / 72th pct
CISA deadline: 2026-10-05 (overdue by 3d) — Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. - CVE-2026-88779 – Citrix NetScaler | CVSS 8.7 | EPSS 0.6% / 47th pct
CISA deadline: 2026-10-07 (overdue by 1d) — Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Top KEVs
Vulnerabilities confirmed actively exploited in the wild by CISA — ranked by ransomware use, then severity. Patch these before anything else.
This Reporting Window
- CVE-2026-102490 – Zammad GmbH Zammad | CVSS 9.4 (CRITICAL) | AV: Network | EPSS 0.6% / 48th pct | Ransomware Use: No
- CVE-2026-102489 – Zammad GmbH Zammad | CVSS 9.4 (CRITICAL) | AV: Network | EPSS 1.4% / 72th pct | Ransomware Use: No
- CVE-2026-88779 – Citrix NetScaler | CVSS 8.7 (HIGH) | AV: Network | EPSS 0.6% / 47th 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 · 2 days ago – Hitachi Energy RTU500
View CSAF Summary Hitachi Energy is publishing this cybersecurity advisory in response to the security findings reported by Dragos affecting end-of-life RTU500 CMU firmware version 9.x. The reported findings are associat… - CISA ICS AdvisoryAdvisory · 2 days ago – Hitachi Energy REB500
View CSAF Summary Hitachi Energy is aware of open-source software vulnerabilities that affect REB500 product versions listed in this document. These vulnerabilities can be exploited to carry out Denial of Service (DoS) a… - CISA ICS AdvisoryAdvisory · 2 days ago – Hitachi Energy SOI
View CSAF Summary Hitachi Energy is aware of RCE (Remote Code Execution) vulnerability in Apache ActiveMQ component of SOI product versions listed in this document. These vulnerabilities can be exploited to carry out var… - SANS ISCResearch · yesterday – Scans for Atlassian vulnerablity (CVE-2026-21589), (Wed, Oct 7th)
On October 5th, Atlassian published patches&#;x26;#;xc2;&#;x26;#;xa0;for multiple products to fix an "Arbitrary File Access" vulnerability &#;x26;… - SANS ISCResearch · 2 days ago – More RMM Tools In the Wild, (Tue, Oct 6th)
It seems that a trend started… I continue my journey discovering more RMM ("Remote Management & Monitoring") tools abused by threat actors! A few days ago, I wrote a diary[1… - Unit 42Incident · yesterday – Evolution of Web3 in Cloud Supply Chain Attacks
Unit 42 details how threat actors leverage Web3 infrastructure and open-source supply chain attacks to breach enterprise cloud environments The post Evolution of Web3 in Cloud Supply Chain Attacks appeared first on Unit … - Unit 42Incident · 2 days ago – Blinder Tunnel Campaign Targets Iraqi Infrastructure
Analysis of Blinder Tunnel, an Iran-nexus campaign using fake Dubai Airports recruitment lures and GitHub C2 malware to target critical infrastructure. The post Blinder Tunnel Campaign Targets Iraqi Infrastructure appear… - Sophos X-OpsResearch · 3 days ago – Citrix NetScaler vulnerability (CVE-2026-88779) in active exploitation
Categories: Threat Research Tags: advisory, vulnerability, Citrix - Sophos X-OpsResearch · 8 days ago – TerminalFix and Lorem Ipsum Loader enable covert tunneling
The activity is linked to a broader campaign that previously used a different delivery mechanism Categories: Threat Research Tags: TerminalFix, clickfix, Lorem Ipsum Loader - The RecordIncident · yesterday – US posts $10 million reward for accused Chinese âHafniumâ hacker
U.S. officials say Zhang Yu was a prominent figure in the Hafnium campaign, which saw hackers breach thousands of computers and steal troves of documents. - The RecordNews · yesterday – $11 million plan for psychological support at Cyber Command gets fresh boost from lawmakers
Lawmakers who oversee military cyber policy as well as the Fort Meade, Maryland, hub for those agencies say an $11 million mental health program should be locked in to defense spending legislation. - Security Affairs (APT)Incident · 4 days ago – Warlock Ransomware Still Exploits Year-Old SharePoint Flaws to Hit Critical Infrastructure
Warlock ransomware continues to exploit unpatched SharePoint flaws to breach water utilities, telecoms, governments, and universities worldwide. Warlock ransomware made headlines back in mid-2025 for exploiting a chain o… - Security Affairs (APT)Incident · 5 days ago – Antino Backdoor Lets China-Linked UAT-11587 Turn Microsoft 365 Into a C2 Channel
Cisco Talos details UAT-11587, a China-linked group using the Antino backdoor and Microsoft 365 as cover to spy on Asian governments. Cisco Talos has been tracking a cluster of espionage activity since September 2025 tha… - Security Affairs (Cybercrime)Incident · yesterday – FortiBleed hit 86,000 firewalls by exploiting something nobody can patch away
FBI and Secret Service warn FortiBleed, a credential-harvesting campaign against Fortinet firewalls, has compromised 86,644 devices and is locking out admins. The FBI and the U.S. Secret Service issued a joint advisory a… - Security Affairs (Cybercrime)Incident · 2 days ago – FBI Drops Accenture Contractor After Sensitive Data Breach
Accenture lost an FBI contract after a missed security patch exposed sensitive employee data, raising serious concerns over operational security. The FBI pulled an Accenture contractor off its account on Monday, and the …
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.
13 new victims posted today
7-day total: 147 via Ransomware.live
Most Active Groups
Group Intelligence
- 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.
- Safepay — SafePay emerged in September 2024 as a rapidly growing ransomware operation that explicitly disavows the RaaS model and manages all operations internally, claiming over 300 victims worldwide by mid-2025 with a high-profile early attack against UK telematics firm Microlise stealing 1.2 TB of data.
- Krybit — Krybit is an emerging RaaS group that launched in late March 2026, offering affiliates an 80/20 revenue split with support for Windows, Linux, ESXi, and NAS device encryption, and became notable for a public feud with rival group 0APT in which each breached and leaked the other's operator data.
- 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
Most Targeted Sectors
Top Countries
US (48), DE (7), ES (6), BR (4), MX (4)
Notable Incidents
- Slate Valley Unified School District (Education · US) — claimed by Kairos. The Slate Valley Unified Union School District is a public school district located in Fair Haven, Vermont, serving the communities of Benson, Castleton, Fair Haven, Hubbardton, Orwell, and West Haven. The data also inclu… Press coverage →
- parkdental.com (Healthcare · GB) — claimed by Chaos. To the Management of Park Dental:
Time is running out. Our previous attempts to establish a constructive dialogue regarding the security breach have been met with silence.
If the management of Park Dental fails to get …
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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