Microsoft Office out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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2.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Office and classified as problematic. The affected element is an unknown function. This manipulation causes out-of-bounds. This vulnerability appears as CVE-2026-50665. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Microsoft Office (the affected version unknown). Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

It is possible to read the advisory at msrc.microsoft.com. This vulnerability is known as CVE-2026-50665 since 06/05/2026. The exploitation appears to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2317). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Microsoft Excel
  • Microsoft Word
  • Microsoft PowerPoint
  • Microsoft Office
  • Microsoft SharePoint
  • Microsoft SharePoint Server 2019
  • Microsoft 365 Apps
  • Microsoft Office Online Server
  • Microsoft Office 365

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.8
VulDB Meta Temp Score: 2.7

VulDB Base Score: 2.8
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/05/2026 CVE reserved
07/14/2026 +39 days Advisory disclosed
07/14/2026 +0 days VulDB entry created
07/28/2026 +14 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2026-50665 (🔒)
GCVE (CVE): GCVE-0-2026-50665
GCVE (VulDB): GCVE-100-378703
CERT Bund: WID-SEC-2026-2317 - Microsoft Office Produkte: Mehrere Schwachstellen

Entryinfo

Created: 07/14/2026 23:03
Updated: 07/28/2026 13:31
Changes: 07/14/2026 23:03 (51), 07/23/2026 10:25 (6), 07/28/2026 13:28 (1), 07/28/2026 13:31 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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