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The four main types of vulnerabilities in information security are network vulnerabilities, operating system vulnerabilities, process (or procedural) vulnerabilities, and human vulnerabilities.

Types of vulnerability include social, cognitive, environmental, emotional or military. In relation to hazards and disasters, vulnerability is a concept that links the relationship that people have with their environment to social forces and institutions and the cultural values that sustain and contest them.

The KEV Catalog is a list of known vulnerabilities that cybercriminals have exploited in recent attacks. The catalog is maintained by CISA, which is a government agency responsible for cybersecurity and infrastructure security in the United States.

CISA KEV is a database of security flaws in software applications and weaknesses that have been exposed and leveraged by attackers. This catalog is publicly available online at CISA KEV. The catalog can also be used by concerned businesses and even by cautious individuals, too.

Top 5 vulnerabilities of 2023?so far CVE-2021-41617 (OpenSSH 6.2 through 8.7) CVE-2020-14145 (OpenSSH 5.7 through 8.4) CVE-2022-22719 (Apache HTTP Server 2.4. 48 and earlier) CVE-2022-22721 (Apache HTTP Server 2.4. 52 and earlier) CVE-2022-22720 (Apache HTTP Server 2.4. 52 and earlier)

Microsoft has taken action against an actively exploited zero-day vulnerability and has provided a patch to address it. The vulnerability, known as CVE-2023-28252 and referred to as ?Windows Common Log File System Driver Elevation of Privilege Vulnerability,? allows for privilege escalation.

One example would be a loosely secured cloud storage system that allows attackers to access sensitive data. Another example would be an open network port on a server which is further exploited through the installation of command and control malware.