Microsoft is working on a bug that causes Defender in Endpoint to incorrectly mark devices as outdated and prompts users to update them.
Microsoft has discovered a bug in Defender for Endpoint that causes some Dell devices to incorrectly receive a warning that their BIOS firmware is outdated. The error lies in the logic of Defender that retrieves vulnerabilities for Dell devices, as confirmed by the company in a service alert.
False Alerts on Dell Devices
According to Microsoft, companies receive notifications that users need to update their BIOS, while this is not actually necessary. It is a bug in Defender, causing the software to misidentify the firmware. Microsoft says it has developed a solution, but it still needs to be rolled out. The exact number of affected customers and regions has not yet been disclosed.
More Issues with Defender and XDR
The error is not isolated, writes Bleeping Computer. Earlier this month, Microsoft already resolved an issue where macOS devices received black screens after an update due to a flaw in Apple’s enterprise security framework.
Recently, false alerts also appeared in Defender’s anti-spam services. For instance, Teams and Exchange users were blocked from opening certain links because the system incorrectly flagged URLs within other URLs as malicious.
Additionally, several machine learning bugs have been resolved this year that incorrectly labeled legitimate emails from Adobe and Gmail, among others, as spam.