Vulnerabilities
Cisco warns that CVE-2026-20245, a zero-day in Catalyst SD-WAN Manager, is being exploited to gain root, with no patch available. Exploitation needs netadmin access — obtainable by chaining CVE-2026-20182 — making it Cisco's seventh exploited SD-WAN zero-day of 2026.
Vulnerabilities
Cisco patched CVE-2026-20230, an unauthenticated server-side request forgery flaw in Unified Communications Manager that lets a network attacker write files and escalate to root. Public proof-of-concept code is already out; Cisco's PSIRT reports no in-the-wild exploitation yet.
Vulnerabilities
Two vulnerabilities disclosed this cycle were found by AI tooling: HTTP/2 Bomb (CVE-2026-49975), a remote DoS that crashes NGINX, Apache, IIS, Envoy and Cloudflare Pingora in default config, and CVE-2026-23479, a two-year-old authenticated RCE in Redis.
Vulnerabilities
Researcher Ammar Askar disclosed a one-click attack via VS Code's GitHub.dev that steals a GitHub OAuth token with read-write access to private repos. He published the PoC with about an hour's notice, blaming Microsoft's disclosure process.
Artificial Intelligence (AI)
SafeBreach researchers found that a single poisoned notification — from WhatsApp, Slack or SMS — could hijack Google Gemini's voice assistant on Android with no malicious app installed, reaching smart-home controls and poisoning the assistant's long-term memory. Google has patched it.
Vulnerabilities
Two more plugin RCEs are under active exploitation: Everest Forms Pro CVE-2026-3300 (CVSS 9.8), a PHP-injection flaw Wordfence has blocked tens of thousands of times, and Magento's Mirasvit Cache Warmer CVE-2026-45247 (CVSS 9.8), now added to CISA's KEV catalog.
Vulnerabilities
Researcher RyotaK of GMO Flatt Security found a flaw in Anthropic's Claude Code GitHub Action that let a single opened issue take over public repos running it. Anthropic fixed it within days (v1.0.94) and paid a bounty; the durable lesson is product-agnostic.
Artificial Intelligence
Anthropic is extending Project Glasswing — which uses its Claude Mythos model to find software flaws — to about 150 more organizations in 15-plus countries, most of them critical-infrastructure operators a major attack could each affect, the company estimates, 100 million-plus people.
Vulnerabilities
A critical flaw in the Kirki WordPress plugin (CVE-2026-8206, CVSS 9.8) lets an unauthenticated attacker send any account's password-reset link — including an admin's — to their own email and seize it. Versions 6.0.0–6.0.6 are fixed in 6.0.7; BleepingComputer reports exploitation.
Cybersecurity 101
A clear guide to patch management — why it matters, the step-by-step process, the types of patches, common challenges, and proven best practices.
Vulnerabilities
CISA added CVE-2024-21182 — an unauthenticated Oracle WebLogic flaw patched in July 2024 — to its Known Exploited Vulnerabilities catalog on evidence of active exploitation. Despite 'RCE' framing elsewhere, CISA describes unauthorized access to WebLogic data; agencies must patch by June 4.
Vulnerabilities
Google's June 2026 Android update fixes CVE-2025-48595, an Android Framework integer overflow that Google says may be under limited, targeted exploitation. Because the Framework is the API layer every app touches, the flaw can hand an attacker complete control of an unpatched device.