CVE-2011-1554: Foolabs Xpdf

Medium severity, CVSS 4.3. EPSS: 5.4% chance of exploitation in the next 30 days.

Off-by-one error in t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6, teTeX, and other products, allows remote attackers to cause a denial of service (application crash) via a PDF document containing a crafted Type 1 font that triggers an invalid memory read, integer overflow, and invalid pointer dereference, a different vulnerability than CVE-2011-0764.

Affected products

• Foolabs Xpdf: version 0.5a only; version 0.7a only; version 0.91a only; version 0.91b only; version 0.91c only; version 0.92a only; …
• Glyphandcog Xpdfreader: up to and including 3.02; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; version 0.6 only; …
• t1lib t1lib: up to and including 5.1.2; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2011-03-31. Last modified 2026-06-16.