Microsoft is releasing security update MS10-018 tomorrow, March 30, 2010, at approximately10:00 a.m. PDT (UTC-8). MS10-018 resolves Security Advisory 981374, addressing a publicly disclosed vulnerability in both IE6 and IE7. It is important to note that IE8 is not affected by the vulnerability addressed in the advisory.

If you have yet to update to IE8, it is strongly recommended that the update be installed as soon as it is available.

Additional information:

Internet Explorer Cumulative Update Releasing Out-of-Band
Security Advisory 981374