The KEV list is useful but largely misunderstood. KEVology explains what it is, and how best to use it.

The post New Paper and Tool Help Security Teams Move Beyond Blind Reliance on CISA’s KEV Catalog appeared first on SecurityWeek.

The security defect allows unauthenticated attackers to execute arbitrary code remotely via malicious HTTP requests.

The post Critical SmarterMail Vulnerability Exploited in Ransomware Attacks appeared first on SecurityWeek.

CISA updated 59 KEV entries in 2025 to specify that the vulnerabilities have been exploited in ransomware attacks.

The post Concerns Raised Over CISA’s Silent Ransomware Updates in KEV Catalog appeared first on SecurityWeek.

VS Code-integrated configuration files are automatically executed in Codespaces when the user opens a repository or pull request.

The post VS Code Configs Expose GitHub Codespaces to Attacks appeared first on SecurityWeek.

The vulnerability could allow attackers to execute arbitrary commands and steal credentials and other secrets.

The post Critical N8n Sandbox Escape Could Lead to Server Compromise appeared first on SecurityWeek.

The security defects can lead to DoS conditions, arbitrary command execution, and privilege escalation.

The post Cisco, F5 Patch High-Severity Vulnerabilities appeared first on SecurityWeek.

Over the past two months researchers have reported three vulnerabilities that can be exploited to bypass authentication in Fortinet products using the FortiCloud SSO mechanism. The first two – CVE-2025-59718 and CVE-2025-59719 – were found by the company’s experts during a code audit (although CVE-2025-59718 has already made it into CISA’s Known Exploited Vulnerabilities Catalog), while the third – CVE-2026-24858 – was identified directly during an investigation of unauthorized activity on devices. These vulnerabilities allow attackers with a FortiCloud account to log into various companies’ FortiOS, FortiManager, FortiAnalyzer, FortiProxy, and FortiWeb accounts if the SSO feature is enabled on the given device.

To protect companies that use both our Kaspersky Unified Monitoring and Analysis Platform and Fortinet devices, we’ve created a set of correlation rules that help detect this malicious activity. The rules are already available for customers to download from Kaspersky SIEM repository; the package name is: [OOTB] FortiCloud SSO abuse package – ENG.

Contents of the FortiCloud SSO abuse package

The package includes three groups of rules. They’re used to monitor the following:

• Indicators of compromise: source IP addresses, usernames, creation of a new account with specific names;
• critical administrator actions, such as logging in from a new IP address, creating a new account, logging in via SSO, logging in from a public IP address, exporting device configuration;
• suspicious activity: configuration export or account creation immediately after a suspicious login.

Rules marked “(info)” may potentially generate false positives, as events critical for monitoring authentication bypass attempts may be entirely legitimate. To reduce false positives, add IP addresses or accounts associated with legitimate administrative activity to the exceptions.

As new attack reports emerge, we plan to supplement the rules marked with “IOC” with new information.

Additional recommendations

We also recommend using rules from the FortiCloud SSO abuse package for retrospective analysis or threat hunting. Recommended analysis period: starting from December 2025.

For the detection rules to work correctly, you need to ensure that events from Fortinet devices are received in full and normalized correctly. We also recommend configuring data in the “Extra” field when normalizing events, as this field contains additional information that may need investigating.

Learn more about our Kaspersky Unified Monitoring and Analysis Platform at on the official solution page.

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.