Out-of-bounds Read Affecting opensc/opensc package, versions [,0.27.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-OPENSCOPENSC-15857161
- published31 Mar 2026
- disclosed30 Mar 2026
- creditKaldreic
Introduced: 30 Mar 2026
CVE-2025-66037 (opens in a new tab)How to fix?
Upgrade opensc/opensc to version 0.27.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read via the sc_pkcs15_pubkey_from_spki_fields function. An attacker can cause the application to read memory outside the allocated buffer by providing crafted input to the fuzz_pkcs15_reader harness, potentially leading to information disclosure or application instability.