CVE-2009-1099: Sun Java Runtime Environment

High severity, CVSS 7.5. EPSS: 5.7% chance of exploitation in the next 30 days.

Integer signedness error in Java SE Development Kit (JDK) and Java Runtime Environment (JRE) 5.0 Update 17 and earlier, and 6 Update 12 and earlier, allows remote attackers to access files or execute arbitrary code via crafted glyph descriptions in a Type1 font, which bypasses a signed comparison and triggers a buffer overflow.

Affected products

• Sun Java Runtime Environment: version 5.0 only; version 6.0 only
• Sun Java SE Development Kit: any version

Published 2009-03-25. Last modified 2026-06-16.