CVE intelligence

CVE-2026-50593

Vulnerability intelligence

Published Jun 5, 2026Sources checked Oct 5, 2026

7.3HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-50593 and is rated High severity with a CVSS score of 7.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Ubuntu Security Notices guidance

Vendor revision: Oct 5, 2026

(CVE-2026-63279) It was discovered that LibreOffice incorrectly mitigated out-of-bounds writes via Graphite font actions.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-50593?

Graphite before 1.3.15 has an integer underflow and resultant out-of-bounds write via Graphite actions, because slotat does not ensure that an offset is within the allowed slot-map range.

Source: NVD