CVE-2026-21261

MEDIUM
2026-02-10 [email protected]
5.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 10, 2026 - 18:16 nvd
MEDIUM 5.5

Description

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

Analysis

Information disclosure in Microsoft Office Excel and related products results from an out-of-bounds read vulnerability that requires local access and user interaction to exploit. An attacker can leverage this flaw to read sensitive data from memory on an affected system. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +28
POC: 0

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CVE-2026-21261 vulnerability details – vuln.today

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