Top 10 Notable Security Vulnerabilities of 2022

Hackers are becoming increasingly sophisticated, making it essential to track and understand security vulnerabilities; this article highlights some of the most dangerous exploits used by threat actors in 2022.

1. Follina (CVE‑2022‑30190) – A remote code execution flaw in Microsoft Windows Support Diagnostic Tool (MSDT) that allows attackers to execute arbitrary shell commands. It has been leveraged by groups such as Sandworm, UAC‑0098 and APT28 for phishing, malware deployment, espionage, and for installing remote access tools like Qbot and AsyncRAT.

2. Log4Shell (CVE‑2021‑44228) – A remote code execution vulnerability in the popular Apache Log4j logging library. Exploitation enables attackers to send crafted log messages that execute malicious code, leading to widespread abuse by cryptomining malware, DDoS botnets, ransomware groups, and nation‑state actors.

3. Spring4Shell (CVE‑2022‑22965) – A remote code execution flaw in the Spring Framework, a widely used Java platform. While less prevalent than Log4Shell, it has been used to deploy cryptomining software and to compromise IoT botnets such as those based on Mirai.

4. F5 BIG‑IP (CVE‑2022‑1388) – A critical vulnerability in the iControl REST interface of F5 BIG‑IP appliances that permits unauthenticated attackers to gain root‑level command execution on the device, leading to attempts to wipe data or install web‑shells.

5. Google Chrome Zero‑Day (CVE‑2022‑0609) – A remote code execution bug in Chrome’s animation component that was exploited in two separate North‑Korean‑linked campaigns (Operation Dream Job and Operation AppleJeus) targeting media, IT, cryptocurrency and fintech organizations.

6. Microsoft Office (CVE‑2017‑11882) – An old remote code execution vulnerability in Microsoft Office that remains heavily discussed on hacker forums; unpatched installations continue to be abused to deliver malware such as SmokeLoader and TrickBot.

7. ProxyNotShell (CVE‑2022‑41082 and CVE‑2022‑41040) – Two high‑severity flaws in Microsoft Exchange that allow remote users to execute arbitrary code or perform SSRF attacks via PowerShell Remoting. They were used to plant the China Chopper web shell and were patched in Microsoft’s November 2022 update.

8. Zimbra Collaboration Suite (CVE‑2022‑27925 and CVE‑2022‑41352) – Vulnerabilities in the Zimbra email platform; one enables remote code execution, the other permits arbitrary file upload. They were exploited by state‑backed actors to compromise thousands of Zimbra servers worldwide.

9. Atlassian Confluence RCE (CVE‑2022‑26134) – A remote code execution issue in Confluence servers that, when unpatched, provides attackers with initial foothold into enterprise networks. It has been abused by botnets such as Kinsing, Hezb and Dark to install cryptocurrency mining malware.

10. Zyxel RCE (CVE‑2022‑30525) – An operating‑system command injection flaw affecting Zyxel firewalls and VPN devices, allowing unauthenticated remote command execution. The vulnerability was highlighted by the NSA’s cyber‑security director as a serious threat, prompting urgent updates.