Microsoft Works Spreadsheet version 8.0 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
The vulnerability is due to a lack of input validation in the wksss.exe file. An unauthenticated, remote attacker could create a malicious spreadsheet file and convince a targeted user to open this file using the affected software. An exploit could result in a DoS condition, causing the application to crash or enter into an infinite loop. In either case, the user can simply restart the application to resume use.
Microsoft has not confirmed this vulnerability and updates are not available.