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CVE-2026-40510

OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_process_history() in src/libopensc/card-piv.c that allows physically present attackers to trigger memory corruption by presenting a crafted PIV smart card or USB device returning a URL field longer than 118 bytes in the Key History Object ASN.1 response.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5e774ad3ba4d974653dbc77f32279badd1d945576c3cdf334cdf96672f83f616
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"PHYSICAL","availabilityImpact":"LOW","baseScore":3.8,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"PHYSICAL","baseScore":1,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","packageURL":"pkg:github/OpenSC/OpenSC","product":"OpenSC","repo":"https://github.com/OpenSC/OpenSC","vendor":"OpenSC","versions":[{"lessThan":"0.27.0-rc1","status":"affected","version":"0","versionType":"semver"},{"lessThan":"3f24f0b48a481a8cf2e46059d8238a283ddc1c13","status":"affected","version":"0","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"PHYSICAL","availabilityImpact":"LOW","baseScore":3.8,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"PHYSICAL","baseScore":1,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-121","description":"Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["patch"],"url":"https://github.com/OpenSC/OpenSC/commit/3f24f0b48a481a8cf2e46059d8238a283ddc1c13"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/references/1
{"tags":["issue-tracking"],"url":"https://github.com/OpenSC/OpenSC/pull/3558"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/opensc-stack-buffer-overflow-via-piv-process-history-in-card-piv-c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f577bf0e8fcf858f9c258fce951f0e2f8db247dc708c210a555ef08c5acd27b9 · sha256:d67db5cd012f7cb4… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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