Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
5 versions affected across 5 products
| Date | Total | Labels |
|---|
| 2026-04-14 | 1 | Patch1 |
| 2026-04-17 | 1 | Disclosure1 |
CVE-2026-32188 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. https://www.cve.org/CVERecord?id=CVE-2026-32188
Post summary
CVE-2026-32188 is an out‑of‑bounds read vulnerability in Microsoft Office Excel that permits local data disclosure by an unauthorized attacker.
CVE-2026-32188 | Microsoft 365 Apps for Enterprise | Information Disclosure Description Out-of-bounds read vulnerability in Microsoft Office Excel in Microsoft 365 Apps for Enterprise allows unauth local attackers to disclose sensitive information by opening a malicious Excel file that triggers the read beyond allocated memory bounds. Severity: High Exploitation: Unknown Public PoC: Unknown Patch Available: Yes Affected Product: Microsoft 365 Apps for Enterprise Affected Version: >= 16.0.1 and < https://aka.ms/OfficeSecurityReleases Sources Vendor: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32188
Post summary
Microsoft Office Excel suffers an out-of-bounds read that could expose sensitive data; Microsoft has released a patch, but no exploitation evidence or PoC is disclosed.
13 of 13 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | microsoft | 365_apps | - | - | x64 |
| App | microsoft | 365_apps | - | - | x86 |
| App | microsoft | excel | 2016 | - | x64 |
| App | microsoft | excel | 2016 | - | x86 |
| App | microsoft | office | 2019 | - | x64 |
| App | microsoft | office | 2019 | - | x86 |
| App | microsoft | office_long_term_servicing_channel | 2021 | - | x64 |
| App | microsoft | office_long_term_servicing_channel | 2021 | - | x86 |
| App | microsoft | office_long_term_servicing_channel | 2021 | macos | - |
| App | microsoft | office_long_term_servicing_channel | 2024 | - | x64 |
| App | microsoft | office_long_term_servicing_channel | 2024 | - | x86 |
| App | microsoft | office_long_term_servicing_channel | 2024 | macos | - |
| App | microsoft | office_online_server | - | - | - |