CVE-2026-2703

LOW
2026-02-19 [email protected]
3.3
CVSS 3.1

CVSS Vector

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

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 22:03 vuln.today
PoC Detected
Mar 10, 2026 - 20:28 vuln.today
Public exploit code
Patch Released
Mar 10, 2026 - 20:28 nvd
Patch available
CVE Published
Feb 19, 2026 - 07:17 nvd
LOW 3.3

Tags

Information Disclosure

Description

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.

Analysis

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. …

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Remediation

During next maintenance window: Apply vendor patches when convenient. Vendor patch is available.

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Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +16
POC: +20

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CVE-2026-2703 vulnerability details – vuln.today
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