CodeMeter (All versions prior to 6.90 when using CmActLicense update files with CmActLicense Firm Code) has an issue in the license-file signature checking mechanism, which allows attackers to build arbitrary license files, including forging a valid license file as if it were a valid license file of an existing vendor. Only CmActLicense update files with CmActLicense Firm Code are affected.
[
{
"product": "CodeMeter",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "All versions prior to 6.90 when using CmActLicense update files with CmActLicense Firm Code."
}
]
}
]