CVE-2021-43215 iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
A memory corruption vulnerability in the Windows iSNS Server allows remote attackers to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-43215?
CVE-2021-43215 is a critical memory corruption vulnerability in Microsoft Windows 10, published on 15 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
Weakness: CWE-787
Which versions are affected by CVE-2021-43215?
It affects 10 products.
Products include Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server and 4 more.
How do I fix CVE-2021-43215?
No fix has been published for CVE-2021-43215 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-43215 being exploited?
There is no known exploitation of CVE-2021-43215 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-f369-x9m4-pmxp.