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Vulnerability record · CVE-2025-64403 · published 12 November 2025

CVE-2025-64403: Apache openoffice missing authorization vulnerability

Apache · Openoffice

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.

8.1 CVSS 3.1 High EPSS 1.2% · top 32.7% CWE-862 · Missing authorization
8.1CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/t7c6jhvdb00xtgd9vvn7h5sq9f4h5trt Mailing ListVendor Advisory
https://www.openoffice.org/security/cves/CVE-2025-64403.html Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/11/11/6 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2014-3524Apache openoffice command injection vulnerabilityApache OpenOffice before 4.1.1 allows remote attackers to execute arbitrary commands and possibly have other unspecified impact via a crafted Calc sp…EPSS 15%9.3CVE-2010-3450Apache openoffice path traversal vulnerabilityMultiple directory traversal vulnerabilities in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allow remote attackers to overwrite arbitrary files via a…EPSS 11%9.3CVE-2010-3451Apache openoffice use after free vulnerabilityUse-after-free vulnerability in oowriter in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allows remote attackers to cause a denial of service (applica…EPSS 10%9.3CVE-2010-3452Apache openoffice use after free vulnerabilityUse-after-free vulnerability in oowriter in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allows remote attackers to cause a denial of service (applica…EPSS 10%9.3CVE-2010-3453Apache openoffice out-of-bounds write vulnerabilityThe WW8ListManager::WW8ListManager function in oowriter in OpenOffice.org (OOo) 2.x and 3.x before 3.3 does not properly handle an unspecified number…EPSS 9.7%9.3CVE-2010-3454Apache openoffice vulnerabilityMultiple off-by-one errors in the WW8DopTypography::ReadFromMem function in oowriter in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allow remote atta…EPSS 10%9.3CVE-2010-4253Apache openoffice out-of-bounds write vulnerabilityHeap-based buffer overflow in Impress in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allows remote attackers to cause a denial of service (applicatio…EPSS 10%9.3CVE-2010-4643Apache openoffice out-of-bounds write vulnerabilityHeap-based buffer overflow in Impress in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allows remote attackers to cause a denial of service (applicatio…EPSS 10%

Source: NIST National Vulnerability Database (record CVE-2025-64403), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.