Keeping up its poor showing in AV-Test's assessments, the free offering from Microsoft scored a zero when it came to protection.
The flaws reside in Windows 7 and Windows 8.1.
Today's release also includes a bulletin that addresses the Windows 8.1 zero-day flaw that was discovered by Google.
Microsoft said that Google released information on a Windows 8.1 flaw even though a fix was on its way.
The company cited that the general lack of interest by organizations led to the change.
Microsoft said it is currently finishing up on a fix.
A TLS padding issue could lead to attack. Also: Microsoft enables POODLE protection in IE 11.
Today's release looks to fix 25 flaws in Windows, Internet Explorer and Office.
U.S. companies should be on the lookout for wiper malware that could brick computers.
Microsoft released a crypto fix that has been seen to be in limited exploit against Windows Server.
Microsoft included the security solution in this month's Patch Tuesday release.
Experts weigh in on how they see security and cultural trends related to the Internet going in the next decade.
The new process looks to verify the authenticity of a Google site before users provide their login details.
This month's security update has led to compatibility and installation errors for many users.
This month's security offering includes three bulletins rated "critical" and five "important" items.