In Hyland Perceptive Document Filters 11.4.0.2647 - x86/x64 Windows/Linux, a crafted OpenDocument document can lead to a SkCanvas object double free resulting in direct code execution.
Double free in ICU in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Double free vulnerability in magick/profile.c in ImageMagick allows remote attackers to have unspecified impact via a crafted file.
A double free issue was addressed with improved memory management. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted file may lead to heap corruption.
The grant-table feature in Xen through 4.8.x has a race condition leading to a double free, which allows guest OS users to cause a denial of service (memory consumption), or possibly obtain sensitive information or gain privileges, aka XSA-218 bug 2.
mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).