Buffer overflow in Apache Openoffice
CVE-2026-90629
An uncontrolled memory access in the WMF import code of Apache OpenOffice versions through 4.1.16 allows a crafted WMF file to cause an invalid memory access, causing program crash or memory corruption. Users are recommended to upgrade to version 4.1.17, which fixes this issue.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.8% 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/lbmfms02205zbpwq3pm39qrx4m1czy2k (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-90629?
- CVE-2026-90629 is a high-severity vulnerability in Apache Openoffice, classified under Out-of-bounds Write. CVSS score: 7.3/10. Published 2026-11-04.
- How severe is CVE-2026-90629?
- High severity. CVSS v3 base score is 7.3 out of 10.