Threat Intelligence Report — September 15, 2026 | 7 New KEVs · 166 Victims

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Report Date: 2026-09-15

New KEVs: 7  — unchanged vs last weekRansomware Victims: 166  ▲ +8 vs last week

7 vulnerabilities were added to the CISA Known Exploited Vulnerabilities catalog this period. Cisco products show the strongest concentration of risk signals this week. Ransomware activity is moderate with 166 new victims posted to leak sites over the last 7 days, with Thegentlemen posting the most victims.

On this page

  1. Patch This Week
  2. Top KEVs
  3. Security News
  4. Ransomware Activity
  5. Vendor-Specific Risks

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.

  1. CVE-2026-20079 – Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | CVSS 10.0 | EPSS 75.8% / 100th pct | PoC Available
    CISA deadline: 2026-09-12 (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.
  2. CVE-2026-19490 – Citrix NetScaler | CVSS 9.3 | EPSS 5.6% / 92th pct
    CISA deadline: 2026-09-12 (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.
  3. CVE-2026-86060 – MikroTik RouterOS | CVSS 9.2 | EPSS 1.1% / 63th pct | PoC Available
    CISA deadline: 2026-09-13 (overdue by 2d) — 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-2026-85706 – GitLab Community Edition and Enterprise Edition | CVSS 10.0 (CRITICAL) | AV: Network | EPSS 12.0% / 96th pct | Ransomware Use: No
  • CVE-2026-20079 – Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | CVSS 10.0 (CRITICAL) | AV: Network | EPSS 75.8% / 100th pct | Ransomware Use: No | PoC Available
  • CVE-2026-84869 – ConnectWise ScreenConnect | CVSS 9.9 (CRITICAL) | AV: Network | EPSS 0.7% / 51th pct | Ransomware Use: No
  • CVE-2026-76461 – Cisco Secure Email Gateway | CVSS 9.8 (CRITICAL) | AV: Network | EPSS 2.2% / 81th pct | Ransomware Use: No
  • CVE-2026-19490 – Citrix NetScaler | CVSS 9.3 (CRITICAL) | AV: Network | EPSS 5.6% / 92th pct | Ransomware Use: No
  • CVE-2026-86060 – MikroTik RouterOS | CVSS 9.2 (CRITICAL) | AV: Network | EPSS 1.1% / 63th pct | Ransomware Use: No | PoC Available
  • CVE-2026-67277 – MikroTik RouterOS | CVSS 8.8 (HIGH) | AV: Network | EPSS 0.9% / 57th pct | Ransomware Use: No | PoC Available

Security News

Advisories, threat research, and incident reports from 12 sources across government, commercial research, and security journalism — prioritized by source credibility.

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.

54 new victims posted today
7-day total: 166 via Ransomware.live

Infostealer Exposure: 245 employee credentials and 16,019 user credentials compromised via infostealer malware across victim organisations — indicating credential theft likely preceded these ransomware deployments.

Most Active Groups

Thegentlemen 32 Qilin 18 Krybit 13 Auditteam 11 Akira 7

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.
  • 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.
  • Auditteam — AuditTeam is a small ransomware group with approximately 5 known victims, primarily targeting organizations in East and Southeast Asia across technology and manufacturing sectors, operating a data leak site consistent with double-extortion methodology.
  • 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

Manufacturing 39 Technology 19 Professional Services 18 Other 14 Healthcare 11

Top Countries

US (54), IN (10), CA (6), JP (5), DE (5)

Notable Incidents

  • Port of Tanjung Pelepas (Transportation · MY) — claimed by Direwolf. Marine Shipping &amp; Transportation Press coverage →
  • Springfield Public Schools (Education · US) — claimed by Interlock. Springfield Public Schools in Springfield, Massachusetts, is the third-largest school district in the state, with over 23,500 students and over 4,200 full-time employees. The school budget accounts for more than two-thir… Press coverage →
  • City of Fort Smith Arkansas (Government & Defense · US) — claimed by Interlock. The City of Fort Smith is committed to providing high-quality, resident-focused services to foster a thriving community. This is how they try to position themselves, but in reality, they are very negligent towards their … Press coverage →
  • PharmaEssentia Corporation (Healthcare · TW) — claimed by Thegentlemen. pharmaessentia.com zoominfo.com/c/pharmaessentia-corp/145441146 PharmaEssentia Taiwanese global biopharma founded in 2003, known for besremi® (ropeginterferon alfa-2b) — the first drug developed in Taiwan ever approved b… Press coverage →
  • Air Canada (Transportation · CA) — claimed by Thegentlemen. aircanada.com zoominfo.com/c/air-canada/3937344 Revenue $16.5 Billion Air Canada We have taken 51409 critical files! Canada's flag carrier and largest airline — founded in 1937 as Trans-Canada Air Lines, HQ'd in Montréal… 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.

Cisco 3 Mikrotik 2 Citrix 1 Connectwise 1 Gitlab 1 KEVs CVEs Mentions

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