Albeit mainly considered a theoretical risk, the flaw has been exploited to disable protections and deliver malware.

The post Critical React Native Vulnerability Exploited in the Wild appeared first on SecurityWeek.

The attacks targeting Europe were analyzed by Ukraine’s CERT-UA and the cybersecurity company Zscaler.

The post Russia’s APT28 Rapidly Weaponizes Newly Patched Office Vulnerability  appeared first on SecurityWeek.

We detail our discovery of CVE-2025-0921. This privileged file system flaw in SCADA system Iconics Suite could lead to a denial-of-service (DoS) attack.

The post Privileged File System Vulnerability Present in a SCADA System appeared first on Unit 42.

From an Anthropic blog post:

In a recent evaluation of AI models’ cyber capabilities, current Claude models can now succeed at multistage attacks on networks with dozens of hosts using only standard, open-source tools, instead of the custom tools needed by previous generations. This illustrates how barriers to the use of AI in relatively autonomous cyber workflows are rapidly coming down, and highlights the importance of security fundamentals like promptly patching known vulnerabilities.

[…]

A notable development during the testing of Claude Sonnet 4.5 is that the model can now succeed on a minority of the networks without the custom cyber toolkit needed by previous generations. In particular, Sonnet 4.5 can now exfiltrate all of the (simulated) personal information in a high-fidelity simulation of the Equifax data breach—one of the costliest cyber attacks in history­­using only a Bash shell on a widely-available Kali Linux host (standard, open-source tools for penetration testing; not a custom toolkit). Sonnet 4.5 accomplishes this by instantly recognizing a publicized CVE and writing code to exploit it without needing to look it up or iterate on it. Recalling that the original Equifax breach happened by exploiting a publicized CVE that had not yet been patched, the prospect of highly competent and fast AI agents leveraging this approach underscores the pressing need for security best practices like prompt updates and patches.

AI models are getting better at this faster than I expected. This will be a major power shift in cybersecurity.

The critical-severity vulnerabilities could allow unauthenticated attackers to execute arbitrary code remotely.

The post Ivanti Patches Exploited EPMM Zero-Days appeared first on SecurityWeek.

The two bugs impacted n8n’s sandbox mechanism and could be exploited via weaknesses in the AST sanitization logic.

The post N8n Vulnerabilities Could Lead to Remote Code Execution appeared first on SecurityWeek.

The four critical flaws could be exploited without authentication for remote code execution or authentication bypass.

The post SolarWinds Patches Critical Web Help Desk Vulnerabilities appeared first on SecurityWeek.

Russian and Chinese state-sponsored threat actors have been exploiting CVE-2025-8088 since July 2025.

The post APTs, Cybercriminals Widely Exploiting WinRAR Vulnerability appeared first on SecurityWeek.

Tracked as CVE-2026-24858, the bug allows attackers to log into devices registered to other FortiCloud accounts.

The post Fortinet Patches Exploited FortiCloud SSO Authentication Bypass appeared first on SecurityWeek.

A total of 12 vulnerabilities have been fixed in OpenSSL, all discovered by a single cybersecurity firm.

The post High-Severity Remote Code Execution Vulnerability Patched in OpenSSL appeared first on SecurityWeek.

The flaws allow threat actors to obtain root privileges or bypass authentication via Telnet and gain shell access as root.

The post Organizations Warned of Exploited Linux Vulnerabilities appeared first on SecurityWeek.

The vulnerability is tracked as CVE-2026-21509 and it can be exploited to bypass security features. 

The post Microsoft Patches Office Zero-Day Likely Exploited in Targeted Attacks appeared first on SecurityWeek.

More than 20 vulnerabilities were found and patched in Dormakaba physical access control systems.

The post Access System Flaws Enabled Hackers to Unlock Doors at Major European Firms appeared first on SecurityWeek.

The critical-severity vulnerability can be exploited via crafted network packets for remote code execution.

The post 2024 VMware Flaw Now in Attackers’ Crosshairs appeared first on SecurityWeek.

Similar to recent FortiCloud single sign-on (SSO) login vulnerabilities, the attacks bypass authentication.

The post Fortinet Confirms FortiCloud SSO Exploitation Against Patched Devices appeared first on SecurityWeek.

Really interesting blog post from Anthropic:

In a recent evaluation of AI models’ cyber capabilities, current Claude models can now succeed at multistage attacks on networks with dozens of hosts using only standard, open-source tools, instead of the custom tools needed by previous generations. This illustrates how barriers to the use of AI in relatively autonomous cyber workflows are rapidly coming down, and highlights the importance of security fundamentals like promptly patching known vulnerabilities.

[…]

A notable development during the testing of Claude Sonnet 4.5 is that the model can now succeed on a minority of the networks without the custom cyber toolkit needed by previous generations. In particular, Sonnet 4.5 can now exfiltrate all of the (simulated) personal information in a high-fidelity simulation of the Equifax data breach—­one of the costliest cyber attacks in history—­using only a Bash shell on a widely-available Kali Linux host (standard, open-source tools for penetration testing; not a custom toolkit). Sonnet 4.5 accomplishes this by instantly recognizing a publicized CVE and writing code to exploit it without needing to look it up or iterate on it. Recalling that the original Equifax breach happened by exploiting a publicized CVE that had not yet been patched, the prospect of highly competent and fast AI agents leveraging this approach underscores the pressing need for security best practices like prompt updates and patches.

Read the whole thing. Automatic exploitation will be a major change in cybersecurity. And things are happening fast. There have been significant developments since I wrote this in October.

CISA has added the Zimbra flaw to the KEV catalog along with three other bugs exploited in the wild.

The post Organizations Warned of Exploited Zimbra Collaboration Vulnerability appeared first on SecurityWeek.

Pwn2Own participants disclosed a total of 76 vulnerabilities during the three-day event. 

The post Infotainment, EV Charger Exploits Earn Hackers $1M at Pwn2Own Automotive 2026 appeared first on SecurityWeek.

The exploitation of the authentication bypass vulnerability started two days after patches were released.

The post Fresh SmarterMail Flaw Exploited for Admin Access appeared first on SecurityWeek.

Hackers bypass the FortiCloud SSO login authentication to create new accounts and change device configurations.

The post New Wave of Attacks Targeting FortiGate Firewalls appeared first on SecurityWeek.