CVE-2011-0556: Adobe Shockwave Player

High severity, CVSS 9.3. EPSS: 4.3% chance of exploitation in the next 30 days.

The Font Xtra.x32 module in Adobe Shockwave Player before 11.5.9.620 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted PFR1 chunk that leads to an unexpected sign extension and an invalid pointer dereference, a different vulnerability than CVE-2011-0569.

Affected products

• Adobe Shockwave Player: up to and including 11.5.9.615; version 1.0 only; version 2.0 only; version 3.0 only; version 4.0 only; version 5.0 only; …

Published 2011-02-10. Last modified 2026-06-16.