Microsoft Office 365 Apps for Enterprise/Outlook insufficiently protected credentials

Summaryinfo

A vulnerability was found in Microsoft Office 365 Apps for Enterprise and Outlook. It has been classified as critical. The impacted element is an unknown function. The manipulation leads to insufficiently protected credentials. This vulnerability is referenced as CVE-2026-62882. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Office 365 Apps for Enterprise and Outlook (unknown version). This issue affects an unknown code block. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. Using CWE to declare the problem leads to CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Insufficiently protected credentials in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.

The advisory is shared at msrc.microsoft.com. The identification of this vulnerability is CVE-2026-62882 since 07/14/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/11/2026). MITRE ATT&CK project uses the attack technique T1552 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Groupware Software

Vendor

• Microsoft

Name

• Office 365 Apps for Enterprise
• Outlook

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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