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LATEST ISSUE

Friday 6 November 2026

● 2 critical● 5 warning● 11 storiesin𝕏
AT A GLANCE
● CRITZyxel GS1900 switch fix fails to stop zero-day● CRITCISA lists patched Apple flaw as exploited for info-stealers● WARNOpenSSH flaw lets attackers log in to password-disabled accounts● WARNCritical Rails flaw lets attackers write files via ImageMagick uploads● WARNCisco UCS Central Software has a remote code execution flaw● WARNSonicWall warns of unpatched flaws in end-of-life GMS● WARNDigiCert breach exposes customer data and identity documents● INFOOpenAI AI generated 948 Linux root exploits in 30 hours● INFOCopilot Chat now has undisclosed usage caps for unlicensed users● INFOCyberattack hits refrigeration provider, endangering French blood stocks● INFOMicrosoft fixes Excel 2016 copy-paste bug again after it returned
☁️ M365/AZURE2 items
INFO☁️ M365/Azure

Copilot Chat now has undisclosed usage caps for unlicensed users

Microsoft is expanding unpublished limits for users without the paid add-on. Features run dry and upgrade prompts appear, so expect helpdesk calls.

Affects: Microsoft 365 users of Copilot Chat without the paid add-on

The Register · Read more →
INFO☁️ M365/Azure

Microsoft fixes Excel 2016 copy-paste bug again after it returned

Microsoft fixed an Excel 2016 copy-paste bug, reintroduced it, and has now fixed it a second time.

Affects: Excel 2016 users

The Register · Read more →
🔐 SECURITY4 items
CRITICAL🔐 Security

CISA lists patched Apple flaw as exploited for info-stealers

CISA added a medium-severity flaw in multiple Apple operating systems to its KEV catalogue after reports of active exploitation. Attackers are using it to deliver info-stealing malware.

Affects: Apple devices running unpatched Apple operating systems

DO THIS ▸ Update managed Apple devices to the latest patched OS releases and confirm compliance in your MDM.
The Hacker News · Read more →
WARNING🔐 Security

OpenSSH flaw lets attackers log in to password-disabled accounts

The "*sshole" bug lets an oversized password log attackers into accounts with password login blocked on Alpine and other musl-based Linux. A decade-old flaw, now fixed.

Affects: Alpine Linux and other musl-based Linux systems running OpenSSH

DO THIS ▸ Apply the fixed OpenSSH update on musl-based systems, starting with any that are internet-facing.
BleepingComputer · Read more →
WARNING🔐 Security

Critical Rails flaw lets attackers write files via ImageMagick uploads

An unauthenticated attacker can write arbitrary files to the server by uploading a crafted file. Only apps that process uploads with ImageMagick are exposed.

Affects: Ruby on Rails apps that process uploads with ImageMagick

DO THIS ▸ Upgrade Rails to the patched release (8.1.4.1 on the 8.1 line) and check the advisory for other branches.
The Hacker News · Read more →
WARNING🔐 Security

DigiCert breach exposes customer data and identity documents

A server migration mistake exposed an internal business system to the internet. Unauthorised parties accessed customer information and identity documents.

Affects: DigiCert customers, including those who submitted identity documents

DO THIS ▸ Watch for DigiCert's notice, then review which client identity documents were supplied and warn them of phishing.
BleepingComputer · Read more →
🔥 NETWORKING3 items
CRITICAL🔥 Networking

Zyxel GS1900 switch fix fails to stop zero-day

Switches that got Zyxel's earlier patch can still be hit by the exploit, Binarly found. Attackers who reach the web interface can run commands without logging in. Nearly 1,000 switches were already compromised.

Affects: Zyxel GS1900 series switches, including patched units

DO THIS ▸ Restrict switch web management to trusted internal networks now, and watch Zyxel's advisory for a working fix.
The Hacker News · Read more →
WARNING🔥 Networking

Cisco UCS Central Software has a remote code execution flaw

Cisco disclosed that an authenticated remote attacker could achieve code execution or information disclosure through the web management interface. The snippet doesn't mention exploitation.

Affects: Cisco UCS Central Software

DO THIS ▸ Check Cisco's advisory for fixed releases and limit management interface access meanwhile.
Cisco PSIRT · Read more →
WARNING🔥 Networking

SonicWall warns of unpatched flaws in end-of-life GMS

SonicWall disclosed two security flaws in Global Management System that it will not fix because the product is end-of-life.

Affects: SonicWall GMS (end-of-life) deployments

DO THIS ▸ Plan migration off GMS and restrict access to it now, because no patch is coming.
BleepingComputer · Read more →
🤖 AI/TOOLING1 item
INFO🤖 AI/Tooling

OpenAI AI generated 948 Linux root exploits in 30 hours

OpenAI's pipeline built 948 local privilege-escalation exploits for Linux, so low-privileged accounts on unpatched systems are effectively root. Expect exploit development to speed up.

Affects: Unpatched Linux systems

DO THIS ▸ Prioritise kernel patching on shared and multi-user Linux servers.
The Hacker News · Read more →
📡 INDUSTRY1 item
INFO📡 Industry

Cyberattack hits refrigeration provider, endangering French blood stocks

Attackers changed temperature and defrost settings at three French blood service sites via a refrigeration equipment provider. The US has also warned of an ongoing threat to industrial refrigeration.

Affects: Internet-reachable industrial refrigeration systems and their suppliers

DO THIS ▸ Ask clients with refrigeration or cold-chain controls whether those are internet-exposed, and lock down remote access.
BleepingComputer · Read more →
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