# CVE-2026-80082: Microsoft Office out-of-bounds read

Source: https://junglewise.ai/threats/cve-2026-80082-microsoft-office-out-of-bounds-read  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-80082 · Severity: medium · CVSS 6.5 · Published 2026-09-08

Microsoft Office, a widely-used productivity suite for creating documents and spreadsheets, contains a flaw that could allow an attacker to read sensitive information from a user's system over a network. If exploited, this could lead to exposure of confidential business data or personal information embedded in Office files or system memory.

Technologies: [Microsoft Office](https://junglewise.ai/threats/technologies/office). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-80082 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-80082 being exploited in the wild.

**How severe is CVE-2026-80082?** Medium severity, with a CVSS score of 6.5, published 8 September 2026.

**Which products and versions are affected?** Microsoft Office <UNKNOWN>.

**Is there a fix for CVE-2026-80082?** 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-2026-80082 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-80082?** Check whether you run Microsoft Office at an affected version. 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

An out-of-bounds read vulnerability exists in Microsoft Office, allowing an attacker to access memory regions beyond intended boundaries. The vulnerability can be triggered over a network without requiring prior authentication. By crafting a malicious Office document or exploit payload, an attacker can leak sensitive information from the affected system's memory. Microsoft has released security updates to address this issue.

## Affected products

- Microsoft Office <UNKNOWN>

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80082](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80082)

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- [Microsoft Office UI security feature bypass](https://junglewise.ai/threats/cve-2026-119998-product-ui-does-not-warn-user-of-unsafe-actions-in-microsoft)
- [Microsoft Office heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-116717-heap-based-buffer-overflow-in-microsoft-office-allows-an)