Quick answers
- Is CVE-2026-69629 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69629 being exploited in the wild.
- How severe is CVE-2026-69629?
- High severity, with a CVSS score of 8.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Office Outlook.
- Is there a fix for CVE-2026-69629?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-69629 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-69629?
- Check whether you run Microsoft Office Outlook. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A heap-based buffer overflow vulnerability exists in Microsoft Office Outlook's memory handling. The flaw can be exploited by an attacker over a network without requiring user authentication, though successful exploitation may require specific preconditions such as specially crafted email content or attachments. An attacker can leverage this vulnerability to achieve remote code execution (RCE) with the privileges of the affected user. The vulnerability has been assigned CVE-2026-69629 with a CVSS score of 8.8, indicating high severity.
Affected products
- Microsoft Office Outlook
Timeline
- 2026-09-08: disclosed