Security News > 2022 > January > Microsoft Faces Wormable, Critical RCE Bug & 6 Zero-Days
Microsoft has addressed a total of 97 security vulnerabilities in its January 2022 Patch Tuesday update - nine of them rated critical - including six that are listed as publicly known zero-days.
The fixes cover a swath of the computing giant's portfolio, including: Microsoft Windows and Windows Components, Microsoft Edge, Exchange Server, Microsoft Office and Office Components, SharePoint Server,.
Another interesting critical-rated RCE issue is CVE-2022-21840 in Microsoft Office, which, importantly, does not yet have a patch for Office 2019 for Mac and Microsoft Office LTSC for Mac 2021.
"Most Office-related RCE bugs are important-severity since they require user interaction and often have warning dialogs, too," said Childs, noting that the Preview Pane is not the attack vector.
Microsoft also patched CVE-2022-21846 - a critical RCE bug in Microsoft Exchange Server reported by the National Security Agency, which is listed as "Exploitation more likely".
"Attackers could use these remote code execution vulnerabilities to deploy and execute code on a target system. This can allow attackers to easily take full control of the system as well as create a base of operations within the network to spread to other systems. Common and widespread vulnerabilities like these are critical for attackers trying to steal corporate data or infiltrating sensitive systems. It is important for organizations to patch and remediate within the 72 hour window to minimize exposure."
News URL
https://threatpost.com/microsoft-wormable-critical-rce-bug-zero-day/177564/
Related news
- Critical RCE bug in Microsoft Outlook now exploited in attacks (source)
- Critical RCE Flaw in GFI KerioControl Allows Remote Code Execution via CRLF Injection (source)
- Hackers exploit critical Aviatrix Controller RCE flaw in attacks (source)
- Microsoft January 2025 Patch Tuesday fixes 8 zero-days, 159 flaws (source)
- Microsoft fixes actively exploited Windows Hyper-V zero-day flaws (source)
- Critical SimpleHelp Flaws Allow File Theft, Privilege Escalation, and RCE Attacks (source)
- 3 Actively Exploited Zero-Day Flaws Patched in Microsoft's Latest Security Update (source)
- Critical Flaws in WGS-804HPT Switches Enable RCE and Network Exploitation (source)
- Critical zero-days impact premium WordPress real estate plugins (source)
- SonicWall warns of SMA1000 RCE flaw exploited in zero-day attacks (source)
Related Vulnerability
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2022-01-11 | CVE-2022-21846 | Unspecified vulnerability in Microsoft Exchange Server 2013/2016/2019 Microsoft Exchange Server Remote Code Execution Vulnerability | 0.0 |
| 2022-01-11 | CVE-2022-21840 | Unspecified vulnerability in Microsoft products Microsoft Office Remote Code Execution Vulnerability | 8.8 |