CVE-2026-97749
Microsoft Office Outlook Remote Code Execution Vulnerability
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Office Outlook Remote Code Execution Vulnerability
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-97749- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-415
- Updated
- 2026-11-02
EUVDEUVD-2026-99803
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-99803- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-h6m4-54g6-gj6c
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a...
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
- Record
GHSA-h6m4-54g6-gj6c- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-415
- Updated
- 2026-11-02
NVD
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-97749- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-415
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-97749 is a critical vulnerability (CVSS 9.8) in Microsoft 365 Apps, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.20%, the 68th percentile. No source names a fixed version.