High severity7.8NVD Advisory· Published Sep 20, 2021· Updated Jun 17, 2026
CVE-2021-39569
CVE-2021-39569
Description
An issue was discovered in swftools through 20200710. A heap-buffer-overflow exists in the function OpAdvance() located in swfaction.c. It allows an attacker to cause code Execution.
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Affected products
2- swftools/swftoolsdescription
Patches
Vulnerability mechanics
References
1- github.com/matthiaskramm/swftools/issues/114nvdExploitIssue TrackingThird Party Advisory
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