CVE-2007-3456: Adobe Flash Player

High severity, CVSS 9.3. EPSS: 47.7% chance of exploitation in the next 30 days.

Integer overflow in Adobe Flash Player 9.0.45.0 and earlier might allow remote attackers to execute arbitrary code via a large length value for a (1) Long string or (2) XML variable type in a crafted (a) FLV or (b) SWF file, related to an "input validation error," including a signed comparison of values that are assumed to be non-negative.

Affected products

• Adobe Flash Player: up to and including 9.0.45.0; version 9.0.16 only; version 9.0.18d60 only; version 9.0.20 only; version 9.0.20.0 only; version 9.0.28 only; …

Published 2007-07-11. Last modified 2026-06-16.