Daily Brief

Linux LPE Quartet: DirtyAH6, TUNderflow, PPPoEject, DiagSpill — Patch Beyond Monday’s KEV

Linux LPE Quartet: DirtyAH6, TUNderflow, PPPoEject, DiagSpill — Patch Beyond Monday’s KEV

Four more local-root bugs disclosed September 18 — different from Monday’s KEV trio. Confirm your kernel covers all four....

Ivanti Neurons for ITSM: Unauth Deserialization RCE Pair (CVE-2026-12744 / 12745)

Ivanti Neurons for ITSM: Unauth Deserialization RCE Pair (CVE-2026-12744 / 12745)

Two CVSS 9.8 unauth deserialization bugs on the ITSM brain. On-prem needs September updates or 2026.2+....

Zyxel GS1900 CVE-2026-7273: Unauth LAN Stack Overflow to OS Commands — KEV Due September 24

Zyxel GS1900 CVE-2026-7273: Unauth LAN Stack Overflow to OS Commands — KEV Due September 24

CISA added the GS1900 CGI stack overflow to KEV yesterday. Federal due September 24 — patch, lock management VLANs, triage....

The 5-Minute Cyber Brief: September 21, 2026

The 5-Minute Cyber Brief: September 21, 2026

Monday reboot-and-revoke brief: Linux kernel KEV trio due today, Orkes Conductor RCE, SolarWinds ARM, CrowdSec offboarding....

CrowdSec: Departed Employee’s Live GitHub Access → ~170 Private Repos Cloned

CrowdSec: Departed Employee’s Live GitHub Access → ~170 Private Repos Cloned

TanStack credential theft plus retained ex-employee GitHub access cloned ~170 private repos....

SolarWinds Access Rights Manager CVE-2026-28326: Hard-Coded Key to Unauth RCE

SolarWinds Access Rights Manager CVE-2026-28326: Hard-Coded Key to Unauth RCE

Hard-coded static key yields unauthenticated RCE on ARM ≤2026.2. Ship 2026.2.1....

Orkes Conductor CVE-2026-58138: Pre-Auth RCE via Unsandboxed Workflow Scripts

Orkes Conductor CVE-2026-58138: Pre-Auth RCE via Unsandboxed Workflow Scripts

Pre-auth INLINE scripts escape GraalVM. Fortinet is blocking thousands of attempts — upgrade to 3.30.2+....

Linux Kernel KEV Trio: kTLS, ebtables, AF_ALG — Federal Due September 21

Linux Kernel KEV Trio: kTLS, ebtables, AF_ALG — Federal Due September 21

CISA's three exploited Linux kernel bugs are due today. Patch, reboot, then triage....

The 5-Minute Cyber Brief: September 18, 2026

The 5-Minute Cyber Brief: September 18, 2026

Friday clock stories: Cisco ISE root bypass due Saturday, Acronis hosting LPE, MikroTik MikroTrick, Check Point management root....

Check Point CVE-2026-91843: Unauth Stack Overflow to Root on Management Servers

Check Point CVE-2026-91843: Unauth Stack Overflow to Root on Management Servers

Pre-auth login overflow yields root on Security Management / Log servers. Apply LivePatch sk1000155; lock Trusted Clients....

MikroTik RouterOS MikroTrick: Unauth SSH Chain Hijacks Devices

MikroTik RouterOS MikroTrick: Unauth SSH Chain Hijacks Devices

CERT.pl MikroTrick chain: SSH auth bypass + privilege escalation. Two CVEs already on CISA KEV....

Acronis Backup CVE-2026-87886: Hosting Plugin LPE — KEV Due September 19

Acronis Backup CVE-2026-87886: Hosting Plugin LPE — KEV Due September 19

Default-permissions LPE on Acronis cPanel/Plesk backup agents under limited targeted exploitation. Same Saturday clock....

Cisco ISE CVE-2026-76460: Unauth Management Bypass to Root — KEV Due September 19

Cisco ISE CVE-2026-76460: Unauth Management Bypass to Root — KEV Due September 19

CVSS 10 ISE/ISE-PIC API auth bypass can land root. Active exploitation; federal due date Saturday September 19....