An exploited zero-day in Cisco UC is impacting millions — communications platforms are now high-value targets. Patch urgency isn’t optional when uptime equals trust. ☎️🚨 #ZeroDayAlert #EnterpriseSecurity

https://www.darkreading.com/endpoint-security/exploited-zero-day-flaw-cisco-uc-affect-millions

Google finds five China-nexus groups exploiting the React2Shell flaw — coordinated campaigns mean patching isn’t optional, it’s urgent. 🔥🛠️ #ThreatActors #ZeroDayAlert

https://securityboulevard.com/2025/12/google-finds-five-china-nexus-groups-exploiting-react2shell-flaw/

Google Finds Five China-Nexus Groups Exploiting React2Shell Flaw

Researchers with Google Threat Intelligence Group have detected five China-nexus threat groups exploiting the maximum-security React2Shell security flaw to drop a number of malicious payloads, from backdoors to downloaders to tunnelers.

Security Boulevard

React2Shell vulnerability is being actively exploited in the wild — developers must patch urgently to stop code execution attacks. ⚛️🔥 #ReactSecurity #ZeroDayAlert

https://thehackernews.com/2025/12/react2shell-vulnerability-actively.html

React2Shell Vulnerability Actively Exploited to Deploy Linux Backdoors

React2Shell vulnerability CVE-2025-55182 is actively exploited to deploy Linux malware, run commands, and steal cloud credentials at scale.

The Hacker News

A Gogs zero-day is under active exploitation — source-control systems can’t be trusted without rapid patching and scoped access controls. 🛠️🚨 #DevSecOps #ZeroDayAlert

https://www.theregister.com/2025/12/10/gogs_0day_under_active_exploitation/

700+ self-hosted Gits battered in 0-day attacks with no fix imminent

: More than half of internet-exposed instances already compromised

The Register

☢️ Apple issues security updates after two active zero-days were exploited in the wild — urgent patching is non-negotiable. 🍏⚠️ #iOSSecurity #ZeroDayAlert

https://thehackernews.com/2025/12/apple-issues-security-updates-after-two.html

Apple Issues Security Updates After Two WebKit Flaws Found Exploited in the Wild

Apple fixes two exploited WebKit bugs targeting specific users, issuing security updates across iOS, macOS, and Safari.

The Hacker News

Chrome is being targeted by active in-the-wild exploits — real attacks, real victims. Patch immediately and harden browser defenses before the window closes. 🌐🚨 #BrowserSecurity #ZeroDayAlert

https://thehackernews.com/2025/12/chrome-targeted-by-active-in-wild.html

Chrome Targeted by Active In-the-Wild Exploit Tied to Undisclosed High-Severity Flaw

Google issues a Chrome update to fix actively exploited issue 466192044 and other confirmed 2025 security flaws.

The Hacker News

Exploitation is imminent for a major React vulnerability — developers must patch quickly before attack chains go mainstream. Speed is now security. ⚛️⚡️ #Vulnerability #ZeroDayAlert

https://www.theregister.com/2025/12/03/exploitation_is_imminent_react_vulnerability/

'Exploitation is imminent' as 39 percent of cloud environs have max-severity React hole

: Finish reading this, then patch

The Register

Brush exploit can crash any Chromium browser in 15–60s — urgent patching and mitigations are non-negotiable. Update browsers and block untrusted content now. ⏱️💥 #BrowserSecurity #ZeroDayAlert

https://securityaffairs.com/184035/hacking/brush-exploit-can-cause-any-chromium-browser-to-collapse-in-15-60-seconds.html

Brush exploit can cause any Chromium browser to collapse in 15-60 seconds

“Brash” flaw in Chromium’s Blink engine lets attackers crash browsers instantly via a single malicious URL, researcher Jose Pino revealed.

Security Affairs

🚨 Google patches Chrome zero-day CVE-2025-6554 exploited in the wild 🛠️. A type confusion flaw in V8 could allow remote code execution via crafted HTML. Update now!
#BrowserSecurity #ZeroDayAlert 🌐🔧

https://thehackernews.com/2025/07/google-patches-critical-zero-day-flaw.html

Chrome Zero-Day CVE-2025-6554 Under Active Attack — Google Issues Security Update

Google releases an update for Chrome’s CVE-2025-6554, a critical zero-day flaw, to prevent exploitation

The Hacker News

🚨 Critical Cisco ISE flaw alert: A new auth bypass vulnerability (CVSS 10) could let attackers gain full access. Patch immediately to protect your network. #CiscoSecurity 🔐 #ZeroDayAlert ⚠️

https://thehackernews.com/2025/06/critical-cisco-ise-auth-bypass-flaw.html

Critical Cisco ISE Auth Bypass Flaw Impacts Cloud Deployments on AWS, Azure, and OCI

Cisco patches critical ISE flaw affecting AWS, Azure, OCI users—unauthenticated access could expose sensitive systems.

The Hacker News