CYBERSECURITYTRACKER
Briefings

Weekly recap: Week of 7 to 13 September 2026

Review the week's tracked stories, vulnerability changes, and unverified leak-site claims for the dates shown.

307 stories tracked; +58 vs prior week; 14 Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) additions; 161 ransomware leak-site claims observed in tracked feeds (unverified)

Monday to Sunday, Coordinated Universal Time (UTC). Permalink label: 2026-W37.

307
Stories
+58 vs prior week
14
CISA KEV additions
+4 vs prior week
161
Leak-site claims
-3 vs prior week

The 307 stories above are counted by publisher date (first-seen date where it is missing or unusable), and only for stories that have a summary and a why-it-matters line and are not thin or editorially excluded. The daily archive counts by the day the tracker first saw each story and does not require a summary or a why-it-matters line: its 6 day pages for these 7 days list 1,227 stories, and 1 day has no page. The two figures use different dates and rules, so they are not expected to match.

Most covered

Most active ransomware groups (leak-site claims, unverified)

Most active ransomware groups by leak-site claims in the week of 7 to 13 September 2026, unverified
The Gentlemen18 claims+9 vs prior week
Auditteam13 claims+13 vs prior week
KryBit13 claims-2 vs prior week
Safepay11 claims+11 vs prior week
Direwolf8 claims-1 vs prior week
Qilin8 claims-7 vs prior week
Akira7 claims-4 vs prior week
Emperador6 claims+5 vs prior week
LockBit5 claims-4 vs prior week
Rhysida5 claims+4 vs prior week

Leak-site claim data is unverified: RansomLook (CC BY 4.0), with ransomware.live as a failover, credited and linked as its terms require (Source: Ransomware.live).

Takedowns and arrests

All takedowns and arrests

CISA KEV additions (Showing 10 of 14)

CISA KEV additions in the week of 7 to 13 September 2026
CVEVendor and productFederal fix deadline
CVE-2026-19490Citrix NetScaler
CVE-2026-85880Microsoft Windows
CVE-2026-81963Microsoft Windows
CVE-2026-20079Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management
CVE-2026-75650Adobe Commerce and Magento
CVE-2025-25249Fortinet Multiple Products
CVE-2026-85706GitLab Community Edition and Enterprise Edition
CVE-2026-86218N-able N-central
CVE-2026-86060MikroTik RouterOS
CVE-2026-84869ConnectWise ScreenConnect

Vulnerabilities on the move, to (the 7 days before this recap was generated)

Vulnerabilities on the move between 2026-09-07 and 2026-09-14
CVEVendor and productWhat changed
CVE-2026-19490Citrix NetScalerAdded to CISA KEV 2026-09-09Added to ENISA EUVD 2026-09-09
CVE-2020-1013Microsoft WindowsAdded to VulnCheck KEV 2026-09-08
CVE-2026-85880Microsoft WindowsAdded to CISA KEV 2026-09-08Added to VulnCheck KEV 2026-09-08Added to ENISA EUVD 2026-09-08
CVE-2026-81963Microsoft WindowsAdded to CISA KEV 2026-09-08Added to VulnCheck KEV 2026-09-08Added to ENISA EUVD 2026-09-08
CVE-2025-25252Fortinet FortiOSAdded to VulnCheck KEV 2026-09-11

Ransomware leak-site claims (20 of 161 shown, unverified)

Ransomware claim data is unverified: RansomLook (CC BY 4.0), with ransomware.live as a failover, credited and linked as its terms require (Source: Ransomware.live).

All leak-site claims and confirmed breaches

Glossary