📡 Tech & Security Digest — 2026-06-26

Curated from Hacker News, security blogs, and tech publications.

Mandiant reveals how Cisco SD-WAN zero-day attacks gained root access — New details have been revealed on how hackers exploited a Cisco Catalyst SD-WAN vulnerability tracked as CVE-2026-20245 in zero-day attacks to create …
Malicious Edge extension abuses Native Messaging as bridge to malware — A malicious Microsoft Edge extension dubbed ‘Edgecution’ has been used in a ransomware attack to escape the browser sandbox and deploy a Python-based …
CISA warns of max severity Ubiquiti flaws exploited in attacks — The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning of hackers actively exploiting flaws in Ubiquity UniFi OS and Lantronix se…

Who Runs the Ransomware Group ‘The Gentlemen?’ — A cybercrime group known as The Gentlemen has emerged as the second most active ransomware gang by victim count, rapidly attracting a talented pool of…

Hackers Exploit Gravity SMTP WordPress Plugin Bug to Expose API Keys — Threat actors are exploiting a recently patched security flaw impacting Gravity SMTP, a WordPress plugin that’s installed on about 100,000 sites.

The…

Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited to Gain Root Access — An unknown threat actor exploited a recently disclosed high-severity security flaw impacting Cisco Catalyst SD-WAN as a zero-day at least two months b…
Apple Patches Beats Studio Buds Flaw Letting Nearby Attackers Spy via Microphone — Apple has updated its Beats Studio Buds wireless earbuds to patch a high-severity vulnerability that could be exploited by nearby hackers to eavesdrop…
F5 Patches Two Critical NGINX Open Source Flaws Enabling Remote Code Execution — F5 has released security updates to address two critical security flaws in NGINX Open Source that could be exploited to achieve code execution on affe…
Cisco Unified CM Flaw Exploited After PoC Reveals File-Write Path to Root — Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unifie…
Microsoft Confirms RoguePlanet Defender Zero-Day, Says Patch is in Development — Microsoft has formally disclosed that it’s working to release a patch to address a Defender zero-day codenamed RoguePlanet.

The vulnerability has now…

Cordyceps CI/CD Flaws Expose 300+ GitHub Repositories to Supply-Chain Attacks — Cybersecurity researchers have flagged a new class of CI/CD workflow weakness that allows attackers to hijack workflows and compromise open-source sup…
GitHub Updates actions/checkout to Block Common Pwn Request Attack Patterns — GitHub is moving to strengthen software supply chain security by updating “actions/checkout” to block pwn request attacks that exploit the risky use o…
OpenAI Expands Daybreak With GPT-5.5-Cyber to Help Defenders Patch Security Flaws — OpenAI on Monday said it’s releasing an improved version of its GPT‑5.5‑Cyber model to trusted defenders as part of the Daybreak initiative the a…
⚡ Weekly Recap: Browser Bugs, EDR Killers, TV Botnet, OpenBSD Flaw, Android Trojan, and More — It’s Monday again.

This week’s threat list looks painfully familiar: abused integrations, fake tools, poisoned websites, ransomware crews trying to s…

📡 Tech & Security Digest — 2026-06-26#