CVE-2026-40528

Name of the Vulnerable Software and Affected Versions OpenSC versions prior to 0.27.0

Description A stack and heap buffer overrun occurs in the do key value() function within src/pkcs15init/profile.c. This issue allows memory corruption when a crafted profile configuration file is supplied. During the invocation of pkcs15-init, a key value entry starting with '=' followed by more than the size of keybuf is copied into keybuf using memcpy without a length check.

Recommendations Update to version 0.27.0 or apply the fix from commit 0358817.