Google Releases Chrome 15.0.874.102

Google has released Chrome 15.0.874.102 for Linux, Mac, Windows, and Chrome Frame to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code. US-CERT encourages users and administrators to review the Google Chrome Releases blog entry and update to...

Oracle Releases Critical Patch Update for October 2011

Oracle has released its Critical Patch Update and Java SE Critical Patch Update Advisory for October 2011 to address 77 vulnerabilities across multiple products. This update contains the following security fixes: 5 for Oracle Database Server 10 for Oracle Fusion Middleware 5 for Oracle E-Business...

Fraudulent DigiNotar SSL Certificate

US-CERT is aware of public reports of the existence of fraudulent SSL certificates issued by DigiNotar. These fraudulent SSL certificates could be used by an attacker to masquerade as legitimate sites. Mozilla has released Firefox 3.6.22 and Firefox 6.0.2 to address this issue. Additional...

Mozilla Releases Firefox 5.0.1

The Mozilla Foundation has released Firefox 5.0.1 to address an issue with Mac OS X 10.7 and Java for Mac OS X 10.6 Update 5. These issues could cause Firefox to crash. US-CERT encourages users and administrators to review the Mozilla Foundation Firefox 5.0.1 Release Notes and apply any necessary...

Google Releases Chrome 12.0.742.100

Google released Chrome 12.0.742.100 for Windows, Mac, Linux, and Chrome Frame to address a critical vulnerability in the Flash player plug-in. This vulnerability could allow an attacker to take control of the affected system. US-CERT encourages users and administrators to review the Google Chrome...

VideoLAN Releases VLC Media Player 1.1.8

VideoLAN has released VLC Media Player 1.1.8 to address two vulnerabilities. These vulnerabilities are due to the improper handling of .AMV and .NSV files. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code. US-CERT encourages users and administrators to review...

Ongoing Phishing Attack

US-CERT is aware of public reports of an ongoing phishing attack. At this time, this attack appears to be targeting PayPal, Bank of America, Lloyds, and TSB users. The attack arrives via an unsolicited email message containing an HTML attachment. This attack is unlike common phishing attacks...

Microsoft Releases Advance Notification for March Security Bulletin

Microsoft has issued a Security Bulletin Advance Notification indicating that its March release will contain three bulletins. One of these bulletins will have the severity rating of critical and will be for Microsoft Windows. The remaining two bulletins will have the severity rating of important...

Mozilla Releases Updates for Firefox, Thunderbird, and SeaMonkey

The Mozilla Foundation has released Firefox 3.6.14 and Firefox 3.5.17 to address multiple vulnerabilities. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code, conduct cross-site request forgery attacks, cause a denial-of-service condition, or operate with elevat...

Google Releases Chrome 9.0.597.84

Google has released Chrome 9.0.597.84 for all platforms to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code or cause a denial-of-service condition. US-CERT encourages users and administrators to review the Google Chrome Releases blog entry an...

Microsoft Releases December Security Bulletin

Microsoft has released updates to address vulnerabilities in Microsoft Windows, Internet Explorer, Office, SharePoint, and Exchange as part of the Microsoft Security Bulletin Summary for December 2010. These vulnerabilities may allow an attacker to execute arbitrary code, operate with elevated...

Microsoft Releases Advance Notification for November Security Bulletin

Microsoft has issued an Security Bulletin Advance Notification indicating that its November release will contain three bulletins. One of these bulletins will have the severity rating of critical and will be for Microsoft Office. The remaining two bulletins will have the severity rating of importa...

Oracle Releases Pre-Release Announcement for October 2010

Oracle has issued a critical patch update pre-release announcement indicating that its October release will contain 81 new vulnerability fixes. Release of the critical patch update is scheduled for Tuesday, October 12, 2010. US-CERT encourages users and administrators to review the pre-release...

Oracle Critical Patch Update Pre-Release Announcement

Oracle has issued a critical patch update pre-release announcement indicating that its July release will contain 59 new vulnerability fixes. Release of the critical patch update is scheduled for Tuesday, July 13, 2010. US-CERT encourages users and administrators to review the pre-release...

Adobe Releases Update for Shockwave Player

Adobe has released a security update to address multiple vulnerabilities in Adobe Shockwave Player 11.5.6.606 and earlier versions for both Windows and Macintosh operating systems. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code. US-CERT encourages users and...

Microsoft Releases Cumulative Security Update for Internet Explorer

Microsoft has released Security Bulletin MS10-002 as a Cumulative Security Update for Internet Explorer. This update addresses multiple vulnerabilities that when exploited, may allow an attacker to execute arbitrary code. US-CERT encourages users and administrators to review Microsoft Security...

CISA, Australia, and Partners Author Joint Guidance on Securely Integrating Artificial Intelligence in Operational Technology

CISA and the Australian Signals Directorate’s Australian Cyber Security Centre, in collaboration with federal and international partners, have released new cybersecurity guidance: Principles for the Secure Integration of Artificial Intelligence in Operational Technology. This guidance aims to hel...

CISA Releases Four Industrial Control Systems Advisories

CISA released four Industrial Control Systems ICS advisories on July 3, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-184-01 Hitachi Energy Relion 670/650 and SAM600-IO Series ICSA-25-184-02 Hitachi Energy...

Advisory Update on Cyber Threat Activity Targeting Commvault’s SaaS Cloud Application (Metallic)

Commvault is monitoring cyber threat activity targeting their applications hosted in their Microsoft Azure cloud environment. Threat actors may have accessed client secrets for Commvault’s Metallic Microsoft 365 M365 backup software-as-a-service SaaS solution, hosted in Azure. This provided the...

CISA Releases Microsoft Expanded Cloud Logs Implementation Playbook

Today, CISA released the Microsoft Expanded Cloud Logs Implementation Playbook to help organizations get the most out of Microsoft’s newly introduced logs in Microsoft Purview Audit Standard. This step-by-step guide enables technical personnel to better detect and defend against advanced intrusio...

Microsoft Releases January 2025 Security Updates

Microsoft released security updates to address vulnerabilities in multiple Microsoft products. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following and apply necessary updates:...

CISA and US and International Partners Publish Guidance on Priority Considerations in Product Selection for OT Owners and Operators

Today, CISA—along with U.S. and international partners—released joint guidance Secure by Demand: Priority Considerations for Operational Technology Owners and Operators when Selecting Digital Products. As part of CISA’s Secure by Demand series, this guidance focuses on helping customers identify...

Cisco Releases Security Updates for NX-OS Software

Cisco released security updates to address a vulnerability in Cisco NX-OS software. A cyber threat actor could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review the following advisory and apply the necessary updates: Cisco NX-OS...

JCDC’s Collaborative Efforts Enhance Cybersecurity for the 2024 Olympic and Paralympic Games

The Cybersecurity and Infrastructure Security Agency CISA, through the Joint Cyber Defense Collaborative JCDC, enabled proactive coordination and information sharing to bolster cybersecurity ahead of the 2024 Olympic and Paralympic Games in Paris. Recognizing the potential for cyber threats...

Citrix Releases Security Updates for XenServer and Citrix Hypervisor

Citrix released security updates to address multiple vulnerabilities in XenServer and Citrix Hypervisor. A cyber threat actor could exploit some of these vulnerabilities to cause a denial of service condition. CISA encourages users and administrators to review the following and apply necessary...

CISA Releases Eight Industrial Control Systems Advisories

CISA released eight Industrial Control Systems ICS advisories on September 24, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-24-268-01 OPW Fuel Management Systems SiteSentinel ICSA-24-268-02 Alisonic Sibylla...

CISA Releases Six Industrial Control Systems Advisories

CISA released six Industrial Control Systems ICS advisories on September 19, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-24-263-01 Rockwell Automation RSLogix 5 and RSLogix 500 ICSA-24-263-02 IDEC PLCs...

FBI, CISA, and Partners Release Advisory Highlighting North Korean Cyber Espionage Activity

Today, CISA—in partnership with the Federal Bureau of Investigation FBI—released a joint Cybersecurity Advisory,North Korea State-Sponsored Cyber Group Conducts Global Espionage Campaign to Advance Regime’s Military and Nuclear Programs. The advisory was coauthored with the following organization...

Apple Releases Security Updates for Multiple Products

Apple has released security updates to address vulnerabilities in Safari, iOS, iPadOS, macOS, watchOS, and tvOS. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system. Users and administrators are encouraged to review the following advisories and...

CISA and Partners Release Guidance for Civil Society Organizations on Mitigating Cyber Threats with Limited Resources

CISA, in partnership with the Department of Homeland Security DHS, the Federal Bureau of Investigation FBI and international partners, released Mitigating Cyber Threats with Limited Resources: Guidance for Civil Society. The joint guidance provides civil society organizations and individuals with...

Microsoft Releases May 2024 Security Updates

Microsoft has released security updates to address vulnerabilities in multiple products. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system. Users and administrators are encouraged to review the following advisory and apply the necessary updates...

CISA and Partners Release Advisory on Black Basta Ransomware

Today, CISA, in partnership with the Federal Bureau of Investigation FBI, the Department of Health and Human Services HHS, and the Multi-State Information Sharing and Analysis Center MS-ISAC released joint Cybersecurity Advisory CSA StopRansomware: Black Basta to provide cybersecurity defenders...

CISA Issues Emergency Directive 24-02: Mitigating the Significant Risk from Nation-State Compromise of Microsoft Corporate Email System

Today, CISA publicly issued Emergency Directive ED 24-02 to address the recent campaign by Russian state-sponsored cyber actor Midnight Blizzard to exfiltrate email correspondence of Federal Civilian Executive Branch FCEB agencies through a successful compromise of Microsoft corporate email...

CISA and NSA Release Cybersecurity Information Sheets on Cloud Security Best Practices

Today, CISA and the National Security Agency NSA released five joint Cybersecurity Information Sheets CSIs to provide organizations with recommended best practices and/or mitigations to improve the security of their cloud environments. Use Secure Cloud Identity and Access Management Practices Use...

Cisco Releases Security Advisories for Cisco NX-OS Software

Cisco released security advisories to address vulnerabilities affecting Cisco NX-OS Software. A cyber threat actor could exploit one of these vulnerabilities to cause a denial-of-service condition. CISA encourages users and administrators to review the following advisories and apply the necessary...

Updated: Top Cyber Actions for Securing Water Systems

Today, CISA, the Environmental Protection Agency EPA, and the Federal Bureau of Investigation FBI updated the joint fact sheet Top Cyber Actions for Securing Water Systems. This update includes additional resources—from American Water Works Association, the WaterISAC, and MS-ISAC—to support water...

CISA Joins ACSC-led Guidance on How to Use AI Systems Securely

CISA has collaborated with the Australian Signals Directorate’s Australian Cyber Security Centre ASD’s ACSC on Engaging with Artificial Intelligencelink is external—joint guidance, led by ACSC, on how to use AI systems securely. The following organizations also collaborated with ACSC on the...

The Apache Software Foundation Updates Struts 2

The Apache Software Foundation has released security updates to address a vulnerability CVE-2023-50164 in Struts 2. A remote attacker could exploit this vulnerability to take control of an affected system. Users and administrators are encouraged to review the Apache Security Bulletinlink is...

CISA Releases Fourteen Industrial Control Systems Advisories

CISA released fourteen Industrial Control Systems ICS advisories on November 16, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-320-01 Red Lion Sixnet RTUs ICSA-23-320-02 Hitachi Energy MACH System Software...

CISA Announces Launch of Logging Made Easy

Today, CISA announces the launch of a new version of Logging Made Easy LMElink is external, a straightforward log management solution for Windows-based devices that can be downloaded and self-installed for free. CISA’s version reimagines technology developed by the United Kingdom’s National Cyber...

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-2023-5631 Roundcube Webmail Persistent Cross-Site Scripting XSS Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors an...

NSA and CISA Release Advisory on Top Ten Cybersecurity Misconfigurations

Today, the National Security Agency NSA and Cybersecurity and Infrastructure Security Agency CISA released a joint cybersecurity advisory CSA, NSA and CISA Red and Blue Teams Share Top Ten Cybersecurity Misconfigurations, which provides the most common cybersecurity misconfigurations in large...

Apple Releases Security Updates for Multiple Products

Apple has released security updates to address vulnerabilities in multiple products. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following advisories and apply the necessary updates...

CISA Releases Six Industrial Control Systems Advisories

CISA released six Industrial Control Systems ICS advisories on September 26, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-269-01 Suprema BioStar 2 ICSA-23-269-02 Hitachi Energy Asset Suite 9 ICSA-23-269-03...

Juniper Releases Multiple Security Updates for Juno OS

Juniper has released updates to address multiple vulnerabilities in Juno OSlink is external. An attacker can exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Juniper’s Support Portallink is external and apply the...

ISC Releases Security Advisories for Multiple Versions of BIND 9

The Internet Systems Consortium ISC has released security advisories that address vulnerabilities affecting multiple versions of the ISC’s Berkeley Internet Name Domain BIND 9. A remote attacker could exploit these vulnerabilities to potentially cause denial-of-service conditions. CISA encourages...

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-2023-29336 Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges. These types of vulnerabilities are...

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. CVE-2023-1389 TP-Link Archer AX-21 Command Injection Vulnerability CVE-2021-45046 Apache Log4j2 Deserialization of Untrusted Data Vulnerability CVE-2023-21839 Oracle...

CISA Releases Two Industrial Control Systems Advisories

CISA released two Industrial Control Systems ICS advisories on April 11, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-101-01 FANUC ROBOGUIDE-HandlingPRO ICSA-20-212-04 Mitsubishi Electric Factory Automation...

CISA Releases ESXiArgs Ransomware Recovery Script

CISA has released a recovery script for organizations that have fallen victim to ESXiArgs ransomware. The ESXiArgs ransomware encrypts configuration files on vulnerable ESXi servers, potentially rendering virtual machines VMs unusable. CISA recommends organizations impacted by ESXiArgs evaluate t...