CVE-2026-45460
Microsoft Office Information Disclosure Vulnerability
Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Office Information Disclosure Vulnerability
Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.
- Record
CVE-2026-45460- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-126
- Updated
- 2026-11-02
EUVDEUVD-2026-35670
Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.
- Record
EUVD-2026-35670- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8wpv-9rm8-hj6h
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information...
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
- Record
GHSA-8wpv-9rm8-hj6h- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-02
NVD
Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.
- Record
CVE-2026-45460- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-02
Affected products
- microsoft 365 apps
- microsoft 365 copilot
- microsoft 365 apps for enterprise
- microsoft office 2019
- microsoft office 365 for mac
- microsoft office for android
- microsoft office ltsc 2021
- microsoft office ltsc 2024
- microsoft office ltsc for mac 2021
- microsoft office ltsc for mac 2024
- microsoft 365
- microsoft office 2021
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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-2026-45460 is a medium vulnerability (CVSS 4.7) in Microsoft 365 Apps, published June 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. No source names a fixed version.