CISA Updates Guidance for Addressing Cisco IOS XE Web UI Vulnerabilities With Additional Releases

Today, CISA updated its guidance addressing two vulnerabilities, CVE-2023-20198 and CVE-2023-20273, affecting Cisco’s Internetworking Operating System IOS XE Software Web User Interface UI. The guidance now notes that Cisco has fixed these vulnerabilities for the 17.6 Cisco IOS XE software releas...

CISA and FBI Release #StopRansomware: CL0P Ransomware Gang Exploits MOVEit Vulnerability

CISA and FBI released a joint Cybersecurity Advisory CSA CL0P Ransomware Gang Exploits MOVEit Vulnerability in response to a recent vulnerability exploitation attributed to CL0P Ransomware Gang. This joint guide provides indicators of compromise IOCs and tactics, techniques, and procedures TTPs...

CISA Publishes User Guide to Prepare for Nov. 1 Move to TLP 2.0

CISA has published its Traffic Light Protocol 2.0 User Guide and Traffic Light Protocol: Moving to Version 2.0 fact sheet in preparation for its November 1, 2022 move from Traffic Light Protocol TLP Version 1.0 to TLP 2.0. Managed by the Forum of Incident Response and Security Teams FIRST, TLP is...

CISA and NSA Publish Joint Cybersecurity Advisory on Control System Defense

CISA and the National Security Agency NSA have published a joint cybersecurity advisory about control system defense for operational technology OT and industrial control systems ICSs. Control System Defense: Know the Opponent is intended to provide critical infrastructure owners and operators wit...

North Korean State-Sponsored APT Targets Blockchain Companies

CISA, the Federal Bureau of Investigation FBI, and the U.S. Treasury Department have released a joint Cybersecurity Advisory CSA that details cyber threats associated with cryptocurrency thefts and tactics used by a North Korean state-sponsored advanced persistent threat APT actor known as the...

ICSJWG Spring 2022 Virtual Meeting

The Industrial Control Systems Joint Working Group ICSJWG will hold its Spring 2022 Virtual Meeting April 26–27. ICSJWG meetings facilitate relationship building among critical infrastructure stakeholders and owners/operators of industrial control systems, idea exchanges regarding critical issues...

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise. Note: to view the newly...

BrakTooth Proof of Concept Tool Demonstrates Bluetooth Vulnerabilities

On November 1, 2021, researchers publicly released a BrakTooth proof-of-concept PoC tool to test Bluetooth-enabled devices against potential Bluetooth exploits using the researcher’s software tools. BrakTooth—originally disclosed in August 2021—is a family of security vulnerabilities in commercia...

Top Routinely Exploited Vulnerabilities

CISA, the Australian Cyber Security Centre ACSC, the United Kingdom’s National Cyber Security Centre NCSC, and the U.S. Federal Bureau of Investigation FBI have released the Joint Cybersecurity Advisory Top Routinely Exploited Vulnerabilities, which details the top vulnerabilities routinely...

CISA Insights: Guidance for MSPs and Small- and Mid-sized Businesses

CISA has released CISA Insights: Guidance for Managed Service Providers MSPs and Small- and Mid-sized Businesses, which provides mitigation and hardening guidance to help these organizations strengthen their defenses against cyberattacks. Many small- and mid-sized businesses use MSPs to manage IT...

VMware Releases Security Update

VMware has released a security update to address a vulnerability in VMware vRealize Business for Cloud. A remote attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review VMware Security Advisory VMSA-2021-0007 and apply th...

Cisco Releases Security Updates

Cisco has released security updates to address a vulnerability in Cisco Small Business routers. A remote attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review Cisco Advisory cisco-sa-rv-132w134w-overflow-Pptt4H2p and...

Microsoft IOC Detection Tool for Exchange Server Vulnerabilities

Microsoft has released an updated script that scans Exchange log files for indicators of compromise IOCs associated with the vulnerabilities disclosed on March 2, 2021. CISA is aware of widespread domestic and international exploitation of these vulnerabilities and strongly recommends organizatio...

Google Releases Security Updates for Chrome

Google has released Chrome version 87.0.4280.88 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review the...

VMware Releases Security Updates for VMware SD-WAN Orchestrator

VMware has released security updates to address multiple vulnerabilities in VMware SD-WAN Orchestrator. An attacker could exploit some of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to...

CISA, IRS, USSS, and Treasury Release Joint Alert on Scams Related to Coronavirus Economic Impact Payments

The Cybersecurity and Infrastructure Security Agency CISA, U.S. Department of the Treasury, Internal Revenue Service IRS, and United States Secret Service USSS have released a Joint Alert with mitigations to help Americans avoid scams related to coronavirus economic impact payments—particularly...

NCSC-NZ Releases Annual Cyber Threat Report

The New Zealand National Cyber Security Centre NCSC-NZ has released their annual report detailing cyber threats and incidents affecting New Zealand from July 2018 to June 2019. During this period, NCSC-NZ recorded an increase in the severity of cybersecurity incidents—particularly from...

CISA Launches “Cyber Essentials” for Small Businesses and Small SLTT Governments

The Cybersecurity and Infrastructure Security Agency CISA has launched Cyber Essentials, an effort to assist small organizations in understanding and addressing cybersecurity risks. Developed in partnership with small businesses and small state, local, tribal, and territorial SLTT governments,...

FBI Expands Election Security Resources

The Federal Bureau of Investigation FBI has released additional election security resources as part of the Protected Voices initiative. Created in partnership with FBI, the Department of Homeland Security, and the Office of the Director of National Intelligence, Protected Voices is an effort to...

Beware of Stalking Apps

The Federal Trade Commission FTC has released an article warning consumers of “stalking apps”—spyware that secretly monitors smartphones. These apps can share information like call history, text messages, photos, GPS locations, and browser history without the user's knowledge. Although this can b...

Creating and Managing Strong Passwords

NCCIC/US-CERT reminds users of the importance of creating and managing strong passwords. Passwords are often the only barrier between you and your personal information. There are several programs attackers can use to help guess or "crack" passwords. However, choosing strong passwords and keeping...

Google Releases Security Updates for Chrome

Google has released Chrome version 62.0.3202.62 for Windows, Mac, and Linux to address multiple vulnerabilities. Exploitation of some of these vulnerabilities may allow a remote attacker to take control of an affected system. US-CERT encourages users and administrators to review the Chrome Releas...

CPNI Releases Paper on Improving Defenses Against Targeted Attack

The United Kingdom's Centre for the Protection of National Infrastructure CPNI has released a report on its “Improving Defenses Against Targeted Attack" iDATA cyber research program. The report contains descriptions and outcomes from a number of projects aimed at addressing threats posed by natio...

Easter Holiday Phishing Scams and Malware Campaigns

As the Easter holiday approaches, US-CERT reminds users to stay aware of holiday scams and cyber campaigns, which may include: shipping notifications that may be phishing scams or may contain malware electronic greeting cards that may contain malware requests for charitable contributions that may...

Apple Releases Multiple Security Updates

Apple has released security updates for Apple OS X and Safari to address multiple vulnerabilities for the following products: Safari 5.1.7 for Mac OS X v10.6.8, Mac OS X Server v10.6.8, OS X Lion Server v10.7.4, OS X Lion v10.7.4, Windows 7, Vista, XP SP2 or later OS X Lion v10.7.4 and Security...

Adobe Releases Security Advisory for Adobe Flash Player

Adobe has released a security update for Adobe Flash Player to address multiple vulnerabilities. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code, obtain sensitive information, cause a denial-of-service condition, or perform a cross-site scripting attack. Adob...

WordPress.org has released WordPress 3.0.4

WordPress.org has released WordPress 3.0.4 to address a vulnerability in the HTML sanitation library. Exploitation of this vulnerability may allow an attacker to insert arbitrary HTML and script code into the browser session. US-CERT encourages users and administrators to review the WordPress.org...

Firefox 3.5 and 3.6 Vulnerability

Mozilla has released a blog entry indicating that it is aware of a critical vulnerability affecting Firefox 3.5 and Firefox 3.6. This vulnerability may allow an attacker to execute arbitrary code. The blog entry indicates that active exploitation of this vulnerability has been detected. Update: T...

Microsoft Re-Releases Security Update for MS10-025

Microsoft has re-released the security update related to Microsoft security bulletin MS10-025. This vulnerability affects Windows Media Services running on Windows 2000 Server. The original release of this update had been revoked last week because it did not effectively correct the underlying...

Mozilla Releases Security Advisories

The Mozilla Foundation has released multiple security advisories to address vulnerabilities in Mozilla Firefox, Thunderbird, and SeaMonkey. Exploitation of these vulnerabilities may allow a remote, unauthenticated attacker to execute arbitrary code or bypass security restrictions. US-CERT...

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2025-6204link is external Dassault Systèmes DELMIA Apriso Code Injection Vulnerability CVE-2025-6205link is external Dassault Systèmes DELMIA Apriso Missing...

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2025-38352link is external Linux Kernel Time-of-Check Time-of-Use TOCTOU Race Condition Vulnerability CVE-2025-48543link is external Android Runtime Unspecifi...

CISA Releases Five Industrial Control Systems Advisories

CISA released five Industrial Control Systems ICS advisories on April 3, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-093-01 Hitachi Energy RTU500 Series ICSA-25-093-02 Hitachi Energy TRMTracker...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-24813link is external Apache Tomcat Path Equivalence Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose...

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2019-9874link is external Sitecore CMS and Experience Platform XP Deserialization Vulnerability CVE-2019-9875link is external Sitecore CMS and Experience Platform X...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-0994link is external Trimble Cityworks Deserialization Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2020-11023link is external JQuery Cross-Site Scripting XSS Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pos...

CISA Releases Six Industrial Control Systems Advisories

CISA released six Industrial Control Systems ICS advisories on November 26, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-24-331-01 Schneider Electric PowerLogic PM55xx and PowerLogic PM8ECC ICSA-24-331-02...

Fortinet Updates Guidance and Indicators of Compromise following FortiManager Vulnerability Exploitation

Fortinet has updated their security advisory addressing a critical FortiManager vulnerability CVE-2024-47575 to include additional workarounds and indicators of compromise IOCs. A remote, unauthenticated cyber threat actor could exploit this vulnerability to gain access to sensitive files or take...

CISA Releases Analysis of FY23 Risk and Vulnerability Assessments

CISA has released an analysis and infographic detailing the findings from the 143 Risk and Vulnerability Assessments RVAs conducted across multiple critical infrastructure sectors in fiscal year 2023 FY23. The analysis details a sample attack path including tactics and steps a cyber threat actor...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2023-46604 Apache ActiveMQ Deserialization of Untrusted Data Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and...

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2023-38831 RARLAB WinRAR Code Execution Vulnerability CVE-2023-32315 Ignite Realtime Openfire Path Traversal Vulnerability These types of vulnerabilities are freque...

CISA Releases Two Industrial Control Systems Advisories

CISA released two Industrial Control Systems ICS advisories on May 9, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-129-02 Hitachi Energy MSM ICSA-21-334-02 Mitsubishi MELSEC and MELIPC Series Update F CISA...

JCDC Announces 2023 Planning Agenda

Today, the Joint Cyber Defense Collaborative JCDC announced its 2023 Planning Agenda. This release marks a major milestone in the continued evolution and maturation of the collaborative’s planning efforts. JCDC’s Planning Agenda brings together government and private sector partners to develop an...

CISA Releases Eight Industrial Control Systems Advisories

CISA has released eight 8 Industrial Control Systems ICS advisories on 22 November 2022. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisory for...

CISA Releases Five Industrial Control Systems Advisories

CISA released five Industrial Control Systems ICS advisories on September 13, 2022. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for...

CISA Joins Partners to Release Advisory on Protecting MSPs and their Customers

The cybersecurity authorities of the United Kingdom, Australia, Canada, New Zealand, and the United States have released joint Cybersecurity Advisory CSA, Protecting Against Cyber Threats to Managed Service Providers and their Customers, to provide guidance on how to protect against malicious cyb...

FBI and FinCEN Release Advisory on AvosLocker Ransomware

The Federal Bureau of Investigation FBI and the Department of the Treasury’s Financial Crimes Enforcement Network FinCEN have released a joint Cybersecurity Advisory identifying indicators of compromise associated with AvosLocker ransomware. AvosLocker is a ransomware-as-a-service affiliate-based...

CISA Compiles Free Cybersecurity Services and Tools for Network Defenders

CISA has compiled and published a list of free cybersecurity services and tools to help organizations reduce cybersecurity risk and strengthen resiliency. This non-exhaustive living repository includes services provided by CISA, widely used open source tools, and free tools and services offered b...

FBI and USSS Release Advisory on BlackByte Ransomware

The Federal Bureau of Investigation FBI and the United States Secret Service USSS have released a joint Cybersecurity Advisory CSA identifying indicators of compromise associated with BlackByte ransomware. BlackByte is a Ransomware-as-a-Service group that encrypts files on compromised Windows hos...