A security initiative from Google hopes to identify and put a stop to previously unknown, unpatched bugs that threaten the Web at large.
The flaw, which is being leveraged in "limited, targeted attacks," allows remote code execution, Microsoft warns.
Vulnerability allowed a "drive-by attack" of malware installation when computers visited a malicious Web site.
Computers infected with malware after visiting a "strategically important Web site," security firm FireEye warns.
Google wants technology firms to cut down on the amount of time it takes to fix zero day vulnerabilities, but some are crying foul.
RSA blog details how the security firm was compromised but still does not say what data was stolen.
Something similar to the zero-day exploit recently discovered in Adobe's Reader and Acrobat tools has been found for its Flash Player as well.
Microsoft says it is working on a security patch to close a hole being used by the Trojan to infect systems.
Trend Micro says that its spotted a zero-day Reader and Acrobat exploit on the Web, identifying the malware by name.
Out-of-band fix on Tuesday will address nine vulnerabilities, including a critical zero-day hole disclosed three weeks ago that affects Internet Explorer 6 and 7.