Office 365 vulnerabilitiesRanked by how likely they are to be used.
Office 365 is made by Microsoft. We track 5 published vulnerabilities listed under that exact name, across 0 versions. None of them is on the list of flaws known to be exploited today. Microsoft lists newer releases under their own names, such as Office 365 Proplus, so check those pages too.
We keep watching the known-exploited list.
Is Office 365 listed under other names? Yes.
Microsoft also lists Office 365 under more specific names, such as Office 365 Proplus. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which Office 365 vulnerabilities are being exploited?
This is the list that matters most: flaws criminals are using now.
None of Office 365's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.
Which Office 365 flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 16%CVE-2018-8597High
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Office...
- 14%CVE-2019-0945High
A remote code execution vulnerability exists when the Microsoft Office Access Connectivity Engine improperly handles objects in memory, aka 'Microsoft Office Access Connectivity Engine Remote Code Execution...
- 8.9%CVE-2019-1446Medium
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka 'Microsoft Excel Information Disclosure Vulnerability'.
- 4.2%CVE-2019-1109Critical
A spoofing vulnerability exists when Microsoft Office Javascript does not check the validity of the web page making a request to Office documents.An attacker who successfully exploited this vulnerability could read...
- 2.4%CVE-2019-1402Medium
An information disclosure vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory, aka 'Microsoft Office Information Disclosure Vulnerability'.
- 0.9%CVE-2026-55054Medium
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
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1 new flaw affects software Acme tracks
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8636.
- Matched to
- Office 365 on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 5 published vulnerabilities listed under the name Office 365, across 0 versions.
None of Office 365's vulnerabilities is on the list of flaws known to be exploited today.
Microsoft also lists Office 365 under more specific names, such as Office 365 Proplus. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Create a Precursor Intelligence account and track Office 365. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.