Security readout for executives and security teams
OpenSC had a buffer-limit handling flaw in its CAC certificate processing code. Organizations using affected OpenSC versions for smart-card or CAC workflows should treat this as a maintenance and exposure-reduction issue, but the provided sources do not define business impact, CVSS severity, or active exploitation. Exposure is most likely where OpenSC is installed for smart-card, CAC, or certificate handling, especially versions through 0.19.0 or 0.20.0 release candidates through rc3. Distro-packaged OpenSC deployments may also be affected until updated. Handle through normal vulnerability management unless OpenSC supports critical CAC authentication workflows. Raise priority for environments with broad smart-card use or outdated unmanaged endpoints. The available evidence does not support emergency response language. Mitigation focus: Inventory OpenSC installations and package versions across endpoints and servers.; Upgrade to a vendor-supported OpenSC release or distro package containing the fix.; Prioritize systems using CAC or smart-card certificate workflows..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2019-19481 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/OpenSC/OpenSC/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278CVE reference · x_refsource_MISC
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18618CVE reference · x_refsource_MISC
- FEDORA-2020-3c93790abeCVE reference · vendor-advisory, x_refsource_FEDORA
Products and packages named in the record
CWE details
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