CVE-2025-66037— OpenSC: Out of Bounds vulnerability
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I. Basic Information for CVE-2025-66037
Vulnerability Information
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Vulnerability Title
OpenSC: Out of Bounds vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, feeding a crafted input to the fuzz_pkcs15_reader harness causes OpenSC to perform an out-of-bounds heap read in the X.509/SPKI handling path. Specifically, sc_pkcs15_pubkey_from_spki_fields() allocates a zero-length buffer and then reads one byte past the end of that allocation. This issue has been patched in version 0.27.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenSC 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSC是OpenSC开源的一款开源的智能卡工具和中间件。 OpenSC 0.27.0之前版本存在缓冲区错误漏洞，该漏洞源于X.509/SPKI处理路径中存在越界堆读取，可能导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-66037
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- Security Issue: Out of Bounds in opensc · Advisory · OpenSC/OpenSC · GitHubx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2025-66037
Same Patch Batch · OpenSC · 2026-03-30 · 4 CVEs total
| CVE-2025-66038 | 3.9 LOW | OpenSC: `sc_compacttlv_find_tag` can return out-of-bounds pointers |
| CVE-2025-66215 | 3.8 LOW | OpenSC: Stack-buffer-overflow WRITE in card-oberthur |
| CVE-2025-49010 | 3.8 LOW | OpenSC: Stack-buffer-overflow WRITE in GET RESPONSE |
IV. Related Vulnerabilities
Same product: OpenSC
- CVE-2025-13763
Libopensc: opensc: multiple uses of uninitialized variable - CVE-2025-66215
OpenSC: Stack-buffer-overflow WRITE in card-oberthur - CVE-2025-66038
OpenSC: `sc_compacttlv_find_tag` can return out-of-bounds po - CVE-2025-49010
OpenSC: Stack-buffer-overflow WRITE in GET RESPONSE - CVE-2023-2977
OpenSC 缓冲区错误漏洞
Same vendor: OpenSC
- CVE-2025-13763
Libopensc: opensc: multiple uses of uninitialized variable - CVE-2025-66215
OpenSC: Stack-buffer-overflow WRITE in card-oberthur - CVE-2025-66038
OpenSC: `sc_compacttlv_find_tag` can return out-of-bounds po - CVE-2025-49010
OpenSC: Stack-buffer-overflow WRITE in GET RESPONSE - CVE-2025-24032
PAM-PKCS#11 vulnerable to authentication bypass with default
Same weakness: CWE-125
- CVE-2026-8177
XML::LibXML versions through 2.0210 for Perl read out-of-bou - CVE-2026-6104
Global buffer over-read in mb_convert_encoding() with attack - CVE-2026-7258
Out-of-bounds read in urldecode() on NetBSD - CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out- - CVE-2026-3508
ASUS System Control Interface 缓冲区错误漏洞
V. Comments for CVE-2025-66037
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