Technology · Microsoft
Microsoft Office Outlook vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 25 vulnerabilities in Microsoft Office Outlook: 17 in the last 7 days and 24 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2026-124228, was published on 10 November 2026. 1 vulnerability in the last four weeks, level on the four before (1).
- Last 7 days
- 17
- Last 90 days
- 24
- Critical, all time
- 2
- Exploited in the wild
- 2
About Microsoft Office Outlook
Microsoft Outlook is an email client and personal information manager.
Latest Microsoft Office Outlook vulnerabilities
- CVE-2026-124228: Microsoft Office Outlook path traversal in pathname handlinghighCVSS 8.8
- CVE-2026-124227: Microsoft Office Outlook use of uninitialized resource code executionhighCVSS 7.5
- CVE-2026-124194: Microsoft Office Outlook user warning spoofing vulnerabilitycriticalexploited in the wildCVSS 6.5
- CVE-2026-123383: Microsoft Office Outlook heap-based buffer overflowhighCVSS 8.8
- CVE-2026-123382: Microsoft Office Outlook untrusted pointer dereferencehighCVSS 8.8
- CVE-2026-123381: Microsoft Office Outlook stack-based buffer overflowhighCVSS 8.8
- CVE-2026-123379: Microsoft Office Outlook heap-based buffer overflowhighCVSS 7.5
- CVE-2026-123378: Microsoft Office Outlook integer overflow remote code executionhighCVSS 7.5
- CVE-2026-123376: Microsoft Office Outlook heap-based buffer overflowhighCVSS 8.8
- CVE-2026-123375: Microsoft Office Outlook stack-based buffer overflowhighCVSS 8.8
- CVE-2026-119997: Microsoft Office Outlook heap buffer overflowhighCVSS 7.8
- CVE-2026-119996: Microsoft Office Outlook heap buffer overflowhighCVSS 7.5
- CVE-2026-119995: Microsoft Office Outlook heap buffer overflowhighCVSS 7.5
- CVE-2026-119993: Microsoft Office Outlook type confusion information disclosuremediumCVSS 6.5
- CVE-2026-111309: Microsoft Office Outlook invalid pointer dereference remote code executionhighCVSS 8.8
- CVE-2026-110068: Microsoft Office Outlook use-after-free remote code executionhighCVSS 8.8
- CVE-2026-110043: Microsoft Office Outlook heap buffer overflowhighCVSS 8.8
- CVE-2026-108448: Microsoft Office Outlook heap-based buffer overflowhighCVSS 7.5EPSS 0.4%
- CVE-2026-100208: Microsoft Office Outlook integer overflow remote code executionhighCVSS 7.5
- CVE-2026-80073: Microsoft Office Outlook out-of-bounds read information disclosuremediumCVSS 6.5EPSS 0.9%
- CVE-2026-78525: Microsoft Office Outlook use-after-free remote code executionhighCVSS 8.8EPSS 0.8%
- CVE-2026-78520: Microsoft Office Outlook out-of-bounds read allows remote code executionmediumCVSS 6.5EPSS 0.9%
- CVE-2026-78519: Microsoft Office Outlook use of uninitialized resource remote code executionhighCVSS 8.8EPSS 0.8%
- CVE-2026-69629: Microsoft Office Outlook heap-based buffer overflowhighCVSS 8.8EPSS 0.8%
- CVE-2024-21413: Microsoft Outlook Improper Input Validation Vulnerabilitycriticalexploited in the wildCVSS 9.8
Most severe Microsoft Office Outlook vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2024-21413: Microsoft Outlook Improper Input Validation Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2026-124194: Microsoft Office Outlook user warning spoofing vulnerabilitycriticalexploited in the wildCVSS 6.5
- CVE-2026-78525: Microsoft Office Outlook use-after-free remote code executionhighCVSS 8.8EPSS 0.8%
- CVE-2026-78519: Microsoft Office Outlook use of uninitialized resource remote code executionhighCVSS 8.8EPSS 0.8%
- CVE-2026-69629: Microsoft Office Outlook heap-based buffer overflowhighCVSS 8.8EPSS 0.8%
- CVE-2026-124228: Microsoft Office Outlook path traversal in pathname handlinghighCVSS 8.8
- CVE-2026-123383: Microsoft Office Outlook heap-based buffer overflowhighCVSS 8.8
- CVE-2026-123382: Microsoft Office Outlook untrusted pointer dereferencehighCVSS 8.8
- CVE-2026-123381: Microsoft Office Outlook stack-based buffer overflowhighCVSS 8.8
- CVE-2026-123376: Microsoft Office Outlook heap-based buffer overflowhighCVSS 8.8
Vulnerabilities per week
1 vulnerability in the last four weeks, level on the four before (1). The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 5 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 1 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 17 | 1 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Microsoft Office Outlook vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/office-outlook)<a href="https://junglewise.ai/threats/technologies/office-outlook"><img src="https://junglewise.ai/threats/technologies/office-outlook/badge.svg" alt="Microsoft Office Outlook vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/office-outlook.json, and this page as text at https://junglewise.ai/threats/technologies/office-outlook.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Microsoft Office Outlook vulnerabilities", https://junglewise.ai/threats/technologies/office-outlook, 11 November 2026.