Vulnerability in Apache Openoffice
CVE-2026-59263
A manipulated document opened in Apache OpenOffice 4.1.16 or earlier may allow substituted content to be displayed manipulating the user. Such documents are corrupt and should not be opened. Users are recommended to upgrade to version 4.1.17, which fixes this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
References
- lists.apache.org/thread.html/drr0ss9wrkq0omlrwjhcm8738pjx3xgd (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-59263?
- CVE-2026-59263 is a medium-severity vulnerability in Apache Openoffice, classified under CWE-349. CVSS score: 5.5/10. Published 2026-11-04.
- How severe is CVE-2026-59263?
- Medium severity. CVSS v3 base score is 5.5 out of 10.