Zero-Day Research | Fixes Available

Fortinet's team of dedicated expert researchers and analysts examine many third party products and software applications daily, looking for weaknesses and exploitable vulnerabilities. When a vulnerability is found the Fortiguard Lab teams work together to create protective measures that can be delivered to our customers and notify the software/product vendor of the vulnerability. Learn More

Vulnerability Severity Level

FortiGuard Event Name's Severity Level is mainly based on the ratings set forth by the Common Vulnerability Scoring System (CVSS). The CVSS is a vendor-neutral, industry standard that provides an open framework for communicating the characteristics and impacts of IT vulnerabilities.

FortiGuard Security Level	CVSS v2 Rating
Critical	9 - 10
High	7 - 8.9
Medium	4 - 6.9
Low	0.1 - 3.9
Info	0

Common Vulnerability Scoring System Version 2.0

The Common Vulnerability Scoring System (CVSS) provides an open framework for communicating the characteristics and impacts of IT vulnerabilities. CVSS consists of 3 groups: Base, Temporal and Environmental.

Each group produces a numeric score ranging from 0 to 10, and a Vector, a compressed textual representation that reflects the values used to derive the score. The Base group represents the intrinsic qualities of a vulnerability. The Temporal group reflects the characteristics of a vulnerability that change over time.

The Environmental group represents the characteristics of a vulnerability that are unique to any user's environment. CVSS enables IT managers, vulnerability bulletin providers, security vendors, application vendors and researchers to all benefit by adopting this common language of scoring IT vulnerabilities.

Exceptions

If there is no CVSS rating posted, then the CVSS rating is calculated. A Base Score tool form is available at: http://nvd.nist.gov/cvss.cfm
If the vulnerable software/system is not common in a business network environment and the FortiGuard Severity Level would normally be Critical, then the FortiGuard Severity Level may be reduced to High.
If the vulnerability is a Denial of Service (DoS) attack and only affecting the availability of a remote service or host, then the FortiGuard Severity Level is adjusted to at most Medium for Client-side DoS and High for Server-side DoS
For any "remote code execution" type of vulnerability, the FortiGuard Severity Level is set to either High or Critical.

Exceptions

For identifying or detecting network traffic, the FortiGuard Severity Level is set to Informational.
For a vulnerability/exploit that is highly active, the FortiGuard Severity Level is temporarily set to either High or Critical. Later, the level may be reduced back to its normal level; generally this is based on the temporal parameter of a vulnerability.
For zero-day vulnerabilities where the rating has not yet been fully evaluated, the FortiGuard Severity Level is generally set at either Medium or High.

For more information on CVSS, visit A Complete Guide to the Common Vulnerability Scoring System Version 2.0.

Please view our Responsible Disclosure Policies

FG-VD-18-145 (Microsoft)

Fortinet Discovers Microsoft Windows Storage Service Elevation of Privilege Vulnerability

Feb 13, 2019 Risk

2019-0659

FG-VD-18-162 (Oracle)

Fortinet Discovers Oracle VirtualBox Denial of Service Vulnerability

Jan 30, 2019 Risk

CVE-2019-2527

FG-VD-18-140 (Adobe)

Fortinet Discovers Magento Commerce Cross-Site Scripting Vulnerability

Jan 04, 2019 Risk

FG-VD-18-152 (Microsoft)

Fortinet Discovers Microsoft Windows Universal Telemetry Client Denial of Service Vulnerability

Dec 11, 2018 Risk

CVE-2018-8612

FG-VD-18-124 (Jenkins)

Fortinet Discovers Jenkins Config File Provider Plugin Cross-Site Scripting Vulnerability

Sep 25, 2018 Risk

FG-VD-18-122 (Jenkins)

Fortinet Discovers Jenkins Metadata Plugin Cross-Site Scripting Vulnerability

Sep 25, 2018 Risk

FG-VD-17-063 (Nextcloud)

Fortinet Discovers Nextcloud Insufficient Input Validation Vulnerability

Aug 10, 2018 Risk

CVE-2018-3776

FG-VD-18-012 (Cisco)

Fortinet Discovers Cisco WebEx Player Memory Corruption Vulnerability II

Jul 19, 2018 Risk

CVE-2018-0380

Refine RESET

Zero-Day Research | Fixes Available

Refine
RESET