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{"bugzilla": {"description": "opensc: OpenSC: Memory corruption via crafted profile configuration file", "id": "2483275", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483275"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/pkcs15init/profile.c that allows attackers to corrupt memory by supplying a crafted profile configuration file. During pkcs15-init invocation, a key value entry beginning with '=' followed by more than sizeof(keybuf) characters is copied into keybuf via memcpy without a length check, causing both stack and heap buffer overruns.", "A flaw was found in OpenSC. A local attacker can exploit this vulnerability by supplying a specially crafted profile configuration file to the `pkcs15-init` utility. This can lead to a stack and heap buffer overrun, allowing the attacker to corrupt memory. This memory corruption could potentially result in a denial of service or other unpredictable system behavior."], "name": "CVE-2026-40528", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-29T13:38:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-40528\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-40528\nhttps://github.com/OpenSC/OpenSC/commit/0358817ec74aeca654f83e7709c7720b14c5db59\nhttps://www.vulncheck.com/advisories/opensc-buffer-overrun-in-do-key-value-via-profile-c"], "threat_severity": "Moderate"}

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