Latest cybersecurity reporting from selected sources.

Unauthenticated Flaw Allows Full Router, Network TakeoverA hidden backdoor, disclosed by CERT/CC and found in multiple firmware versions made by Chinese manufacturer Tenda, bypasses authentication and could grant attackers administrative access. Researchers are reporting exploitation and an Nmap script is making vulnerable devices easier to identify.

Unauthenticated Flaw Allows Full Router, Network TakeoverA hidden backdoor, disclosed by CERT/CC and found in multiple firmware versions made by Chinese manufacturer Tenda, bypasses authentication and could grant attackers administrative access. Researchers are reporting exploitation and an Nmap script is making vulnerable devices easier to identify.

A China-linked threat cluster has been exploiting vulnerable Roundcube servers at U.S. and Canadian universities to steal credentials and deploy backdoor malware. [...]

CERT/CC warns an unpatched backdoor in several Tenda routers lets attackers bypass login and gain full admin access with a hidden password. CERT/CC published an alert documenting an undocumented authentication backdoor in multiple Tenda firmware versions, tracked as CVE-2026-11405. The flaw gives anyone who knows the right password full administrative access to the device’s web […]

This week was a reminder that attackers do not always need big tricks. One small mistake, one old access path, one missed patch, and suddenly the door is open

Chainable Bugs Enable Credential Theft, Persistence, TakeoverFour chainable flaws in OpenClaw allowed attackers to move from an initial foothold to persistent system-level compromise by abusing the AI agent's own privileges. The bugs enabled credential theft, privilege escalation and backdoor deployment, affecting all versions released before April 23.

A threat actor named Mr_Rot13 has been attributed to the exploitation of a recently disclosed critical cPanel flaw to deploy a backdoor codenamed Filemanager on compromised environments

React2Shell continues to witness heavy exploitation, with threat actors leveraging the maximum-severity security flaw in React Server Components (RSC) to deliver cryptocurrency miners and an array of previously undocumented malware families, according to new findings from Huntress

Security, trust, and stability — once the pillars of our digital world — are now the tools attackers turn against us. From stolen accounts to fake job offers, cybercriminals keep finding new ways to exploit both system flaws and human behavior

From unpatched cars to hijacked clouds, this week’s Threatsday headlines remind us of one thing — no corner of technology is safe. Attackers are scanning firewalls for critical flaws, bending vulnerable SQL servers into powerful command centers, and even finding ways to poison Chrome’s settings to sneak in malicious extensions

Also, Akira Ransomware Resumes Attacks Via SonicWall FlawsThis week, the Vidar infostealer, BlackDB admin, Akira ransomware hackers and Patch Tuesday. A warning for British bankers, a Cursor flaw, a Brazilian dating app shut down. KazMunayGas said it wasn't hacked. Wealthsimple and Hello Gym data breaches. A macOS backdoor hid in plain sight for years.

Attackers are wielding the sophisticated modular malware while exploiting CVE-2025-29824, a previously zero-day flaw in Windows Common Log File System (CLFS) that allows attackers to gain system-level privileges on compromised systems.

Malware isn’t just trying to hide anymore—it’s trying to belong. We’re seeing code that talks like us, logs like us, even documents itself like a helpful teammate. Some threats now look more like developer tools than exploits. Others borrow trust from open-source platforms, or quietly build themselves out of AI-written snippets. It’s not just about being malicious—it’s about being believable.

The threat actor linked to the exploitation of the recently disclosed security flaws in Microsoft SharePoint Server is using a bespoke command-and-control (C2) framework called AK47 C2 (also spelled ak47c2) in its operations

Threat actors have been observed exploiting a now-patched critical SAP NetWeaver flaw to deliver the Auto-Color backdoor in an attack targeting a U.S.-based chemicals company in April 2025

Backdoor malware Auto-Color targets Linux systems, exploiting SAP NetWeaver flaw CVE-2025-31324

Semperis Warns of Flaw in Windows Server 2025 Delegated Managed Service AccountsA critical cryptographic flaw in Windows Server 2025's delegated Managed Service Accounts, or dMSAs, allows attackers to generate passwords for every managed service account across an Active Directory forest and create a backdoor, Semperis researchers found.

A now-patched security flaw in Google Chrome was exploited as a zero-day by a threat actor known as TaxOff to deploy a backdoor codenamed Trinper

Hardcoded passwords and path traversals keeping bug hunters in work Security researchers have issued a warning about a pre-authentication exploit chain affecting a CMS used by some of the biggest companies in the world.…

PLUS: Chinese robodogs include backdoor; OpenAI helps spammer; A Dutch data disaster; And more! Infosec In Brief Fortinet last week admitted that attackers have found new ways to exploit three flaws it thought it had fixed last year.…