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CVE-2025-64403— Apache OpenOffice: Remote documents loaded without prompt via "external data sources" in Calc

Quick assessment

Affected
Apache Software Foundation Apache OpenOffice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache OpenOffice是美国阿帕奇（Apache）基金会的一款开源的办公软件套件。该套件包含文本文档、电子表格、演示文稿、绘图、数据库等。 Apache OpenOffice 4.1.15及之前版本存在安全漏洞，该漏洞源于缺少授权检查，可能导致外部数据源链接被自动加载。

AI Predicted 5.5 Difficulty: Easy EPSS 1.21% · P67
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I. Basic Information for CVE-2025-64403

Vulnerability Information
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Vulnerability Title
Apache OpenOffice: Remote documents loaded without prompt via "external data sources" in Calc
Source: CVE Program / CVE List V5
Vulnerability Description
Apache OpenOffice Calc spreadsheet can contain links to other files, in the form of "external data sources". A missing Authorization vulnerability in Apache OpenOffice allowed an attacker to craft a document that would cause such links to be loaded without prompt. This issue affects Apache OpenOffice: through 4.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Apache OpenOffice 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache OpenOffice是美国阿帕奇（Apache）基金会的一款开源的办公软件套件。该套件包含文本文档、电子表格、演示文稿、绘图、数据库等。 Apache OpenOffice 4.1.15及之前版本存在安全漏洞，该漏洞源于缺少授权检查，可能导致外部数据源链接被自动加载。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache OpenOffice 0 ~ 4.1.15 -

II. Public POCs for CVE-2025-64403

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III. Intelligence Information for CVE-2025-64403

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Vendor Advisories for CVE-2025-64403 (1)

Mailing List Discussions for CVE-2025-64403 (1)

Same Patch Batch · Apache Software Foundation · 2025-11-12 · 9 CVEs total

CVE-2025-64401 Apache OpenOffice: Remote documents loaded without prompt via IFrame
CVE-2025-64402 Apache OpenOffice: Remote documents loaded without prompt via OLE objects
CVE-2025-64404 Apache OpenOffice: Remote documents loaded without prompt via background and bullet images
CVE-2025-64405 Apache OpenOffice: Remote documents loaded without prompt via DDE function
CVE-2025-64406 Apache OpenOffice: Possible memory corruption during CSV import
CVE-2025-64407 Apache OpenOffice: URL fetching can be used to exfiltrate arbitrary INI file values and en
CVE-2025-59118 Apache OFBiz: Critical Remote Command Execution via Unrestricted File Upload
CVE-2025-61623 Apache OFBiz: Reflected Cross-site Scripting

IV. Related Vulnerabilities

Same product: Apache OpenOffice
Same vendor: Apache Software Foundation
Same weakness: CWE-862

V. Comments for CVE-2025-64403

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