CVE-2017-12626

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-01-29 · updated 2026-06-17
Weakness: CWE-835

Description

Apache POI in versions prior to release 3.17 are vulnerable to Denial of Service Attacks: 1) Infinite Loops while parsing crafted WMF, EMF, MSG and macros (POI bugs 61338 and 61294), and 2) Out of Memory Exceptions while parsing crafted DOC, PPT and XLS (POI bugs 52372 and 61295).

Affected products

Apache Software Foundation Apache POI: before 3.17 — fixed in 3.17

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache POI 3.17. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/102879
https://access.redhat.com/errata/RHSA-2018:1322
https://lists.apache.org/thread.html/453d9af5dbabaccd9afb58d27279a9dbfe8e35f4e5ea1645ddd6960b%40%3Cdev.poi.apache.org%3E
https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujan2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
http://www.securityfocus.com/bid/102879

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