Zero-Day Vulnerabilities Dominate 2023 Exploited Flaws: CISA

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a new report identifying the most commonly exploited vulnerabilities in 2023, revealing that zero-day vulnerabilities dominated the list. This marks a shift from 2022, when less than half of the top exploited vulnerabilities were zero-days. In collaboration with global cybersecurity authorities, CISA found that attackers continue to target these flaws long after they’re disclosed, with the risk decreasing as more patches are applied over time.

Among the most significant vulnerabilities are those affecting vendors like Citrix and Cisco, including code injection bugs (CVE-2024-3519), privilege escalation flaws (CVE-2023-20198), and buffer overflow vulnerabilities (CVE-2023-4966). CISA encourages organizations to prioritize patching these CVEs, regularly monitor for signs of compromise, and consider advanced defensive tools like endpoint detection and response (EDR), web application firewalls, and network protocol analyzers.

The agency’s report also explores reasons for the shift toward zero-day exploits. Some experts suggest that declining software quality contributes to the issue, while others point to attackers focusing on retaining exploit information for exclusive use rather than widely sharing it.

To aid organizations in mitigating these threats, CISA offers a range of recommendations focused on identity and access management, enhancing protective controls, and strengthening supply chain security.

Source: Dark Reading

The European Cyber Intelligence Foundation is a nonprofit think tank specializing in intelligence and cybersecurity, offering consultancy services to government entities. To mitigate potential threats, it is important to implement additional cybersecurity measures with the help of a trusted partner like INFRA www.infrascan.net, or you can try yourself using check.website.