---
title: "CVE-2026-59265: Apache OpenOffice - Remote Code Execution"
description: "Apache OpenOffice <= 4.1.16 contains a remote code execution caused by Java integration processing crafted untrusted documents, letting attackers execute arbitrary code when opened by users, exploit requires user to open malicious document."
url: https://panop.io/threat-heartbeat/CVE-2026-59265/
---

# CVE-2026-59265 Apache OpenOffice - Remote Code Execution

Apache OpenOffice <= 4.1.16 contains a remote code execution caused by Java integration processing crafted untrusted documents, letting attackers execute arbitrary code when opened by users, exploit requires user to open malicious document.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Not required

EPSS

0.43% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-59265)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution

CVSS vector

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

Published

2 October 2026

Updated

15 October 2026

Weakness

[CWE-426](https://cwe.mitre.org/data/definitions/426.html)

## Vendor fix

Upgrade to version 4.1.17 or later; disable Java runtime integration as a temporary mitigation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-59265](https://nvd.nist.gov/vuln/detail/CVE-2026-59265)
- [https://github.com/apache/openoffice/commit/c699bed3f75e79bd64ddec9dec49f9e210eed281.patch](https://github.com/apache/openoffice/commit/c699bed3f75e79bd64ddec9dec49f9e210eed281.patch)
- [https://lists.apache.org/thread.html/svfdc1jtpqlw7mo6lgg9fthcmf754pl5](https://lists.apache.org/thread.html/svfdc1jtpqlw7mo6lgg9fthcmf754pl5)
- [http://www.openwall.com/lists/oss-security/2026/10/02/2](http://www.openwall.com/lists/oss-security/2026/10/02/2)
- [http://www.openwall.com/lists/oss-security/2026/10/08/7](http://www.openwall.com/lists/oss-security/2026/10/08/7)
- [https://github.com/apache/openoffice/commit/95923fd437e06edd38a4f0e139a27c755a6f3ba6.patch](https://github.com/apache/openoffice/commit/95923fd437e06edd38a4f0e139a27c755a6f3ba6.patch)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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