Omar Santos

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At Cisco, our leadership made the decision over twenty four years ago that we would clearly publicly communicate security vulnerabilities or other issues that could potentially expose customers to risk....

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Back in 2014, I wrote an article that highlighted that global Internet routing table passed the 512,000 or 512k route mark. Today we know that another significant milestone has been...

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This week marks the 100th Anniversary of Armistice Day and Veterans Day.  With veterans top of mind, Cisco today announced the expansion of CyberVetsUSA, a free cybersecurity training program...

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With the security of our customers' networks being a top priority, we're actively raising awareness of a vulnerability affecting Cisco ASA Software and Cisco Firepower Threat Defense (FTD) Software.

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On January 29, 2018, the Cisco PSIRT published a security advisory about a remote code execution and denial of service vulnerability affecting the Cisco ASA and Cisco Next-Generation Firewall platforms.

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On October 16th,Mathy Vanhoef and Frank Piessens, from the University of Leuven, published a paper disclosing a series of vulnerabilities that affect the Wi-Fi Protected Access (WPA) and the...

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I am pleased to announce that the OASIS CSAF Common Vulnerability Reporting Framework (CVRF) Version 1.2 committee specification is now available. As covered in our previous blog posts, the purpose of the OASIS Common Security Advisory Framework (CSAF) Technical Committee (TC) is to standardize the practices for structured machine-readable security vulnerability-related advisories. The CSAF TC is focusing […]

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A few months ago, I wrote about the new OASIS Common Security Advisory Framework (CSAF) Technical Committee (TC). The purpose of the CSAF Technical Committee is to standardize the practices for structured machine-readable security vulnerability-related advisories. And then we will further refine those standards over time. The Common Vulnerability Reporting Framework (CVRF) Version 1.2, the […]

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On March 29, Cisco became aware of several customer outages involving different releases and models of Cisco ASA and Cisco Firepower Threat Defense (FTD) appliances. Cisco has published a Field Notice urging Cisco customers who are running specific releases of software to reboot their devices to prevent a device from hanging and stop passing traffic. The issue […]

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UPDATE: March 17, 2017 Based on the “Vault 7” public disclosure, Cisco launched an investigation into the products that could potentially be impacted by these and similar exploits and vulnerabilities. As part of the internal investigation of our own products and the publicly available information, Cisco security researchers found a vulnerability in the Cluster Management […]

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The Cisco PSIRT openVuln API is a RESTful API that allows customers to obtain Cisco security vulnerability information in different machine-consumable formats. It supports industrywide security standards such as the Common Vulnerability Reporting Framework (CVRF), Open Vulnerability and Assessment Language (OVAL), Common Vulnerability and Exposure (CVE) identifiers, Common Weakness Enumeration (CWE), and the Common Vulnerability Scoring System (CVSS). This API […]

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The Cisco Product Security Incident Response Team (PSIRT) is now scoring all security advisories addressing security vulnerabilities that affect Cisco products and multivendor vulnerability alerts using the Common Vulnerability Scoring System version 3 (CVSSv3). The stakeholders at the Forum of Incident Response and Security Teams (FIRST) have done a great job in this new version […]

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Recent cyber attacks on organizations around the world have demonstrated the need for consistency in managing security vulnerabilities. To answer that demand, the Industry Consortium for the Advancement of Security on the Internet (ICASI) and the Forum of Incident Response and Security Teams (FIRST) created the FIRST Vulnerability Coordination Special Interest Group (SIG). This is […]

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Back in April, I wrote a blog post about the new version of the Common Vulnerability Scoring System (CVSS). The changes made for CVSSv3 addressed some of the challenges that existed in CVSSv2. For example, CVSSv3 analyzes the scope of a vulnerability and identifies the privileges an attacker needs to exploit it. The CVSSv3 enhancements […]

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During the last few years we have witnessed how the cyber security threat landscape has evolved. The emergence of the Internet of Things combined with recent events have profoundly changed how we protect our systems and people, and drive us to think about new approaches for vendors to disclose security vulnerabilities to customers and consumers. […]

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UPDATE April 20, 2017 Cisco continues to evaluate potential implications of the activities and information posted publicly by the Shadow Brokers Group.  We launched an investigation to analyze the new files posted on April 14th, 2017, and so far have not found any new vulnerabilities or exploits that affect Cisco products and services. Cisco PSIRT will […]

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The Common Vulnerability Scoring System (CVSS), which is used by many in the industry as a standard way to assess and score security vulnerabilities, is evolving to a new version known as CVSSv3. These changes addressed some of the challenges that existed in CVSSv2; CVSSv3 analyzes the scope of a vulnerability and identifies the privileges […]

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In October, we announced details about Cisco PSIRT’s new and improved security vulnerability disclosure format. Our Chief Security and Trust Officer, John Stewart, also revealed that Cisco will launch an application programming interface (API) that empowers customers to customize Cisco vulnerability information and publications. Today, we have officially launched the Cisco PSIRT openVuln API and it is available […]