CVE-2021-0117 is a vulnerability that affects the Microsoft Windows Codecs Library. This flaw exists due to improper handling of objects in memory, which could allow an attacker to execute arbitrary code on a target system. The vulnerability has a severity rating of "important," and it was patched by Microsoft in its April 2021 Patch Tuesday release.
The vulnerability was first reported by researchers at Check Point Software Technologies in March 2021. They discovered that the Windows Codecs Library, which is used by many applications to handle multimedia content, contained a flaw that could be exploited by a malicious actor. An attacker could use a specially crafted image file to trigger the vulnerability and gain remote access to a target system.
After being notified of the vulnerability by Check Point, Microsoft quickly released a patch to address the issue. The patch was included in the company's April 2021 Patch Tuesday release, which also addressed several other security vulnerabilities in Windows and other Microsoft products. It is important for users and organizations to apply this patch as soon as possible to ensure that their systems are protected from potential attacks exploiting CVE-2021-0117 or any other known vulnerabilities.