Out-of-bounds Write Affecting libreoffice package, versions [25.8.0,25.8.7)[26.2.0,26.2.3)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-LIBREOFFICE-16438987
- published7 May 2026
- disclosed7 May 2026
- creditDuc Anh Nguyen
Introduced: 7 May 2026
CVE-2026-4430 (opens in a new tab)How to fix?
Upgrade libreoffice to version 25.8.7, 26.2.3 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write via crafted OOXML documents with mismatched encryption salt parameters. An attacker can execute arbitrary code or cause a crash by supplying specially crafted input that triggers an out-of-bounds write.