Medium
opensc — security advisory
OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to the computer at the time user or administrator uses a token can cause a stack-buffer-overflow WRITE in card-oberthur. The attack requires crafted USB device or smart card that would present the system with specially crafted responses to the APDUs. This issue has been patched in version 0.27.0.
- Products
- opensc
- Affected versions
- 0.15.0-1ubuntu1, 0.15.0-1ubuntu1+esm1, 0.15.0-1ubuntu1+esm2, 0.15.0-1ubuntu1+esm3, 0.17.0-1, 0.17.0-2, 0.17.0-2build1, 0.17.0-3, 0.17.0-3ubuntu0.1~esm1, 0.17.0-3ubuntu0.1~esm2, 0.17.0-3ubuntu0.1~esm3, 0.19.0-2, 0.20.0-1, 0.20.0-2, 0.20.0-3, 0.20.0-3ubuntu0.1~esm1, 0.20.0-3ubuntu0.1~esm2, 0.20.0-3ubuntu0.1~esm3, 0.20.0-3ubuntu0.1~esm4, 0.21.0-1ubuntu1, 0.22.0-1ubuntu2, 0.22.0-1ubuntu2+esm1, 0.22.0-1ubuntu2.1, 0.22.0-1ubuntu2.1+esm1, 0.23.0-1ubuntu4, 0.24.0~rc1-1, 0.25.0~rc1-1, 0.25.0~rc1-1build1, 0.25.0~rc1-1build2, 0.25.0~rc1-1ubuntu0.1, 0.25.0~rc1-1ubuntu0.1~esm1, 0.25.0~rc1-1ubuntu0.2, 0.25.0~rc1-1ubuntu0.2+esm1, 0.26.1-1, 0.26.1-2, 0.26.1-3, 0.26.1-3ubuntu1, 0.27.0~rc1-1, 0.27.1-2, 0.27.1-2ubuntu1, 0.27.1-2ubuntu2
- Fixed versions
- Not specified
- CVEs
- CVE-2025-66215
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:49 UTC · Revision 1
Source evidence
OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to the computer at the time user or administrator uses a token can cause a stack-buffer-overflow WRITE in card-oberthur. The attack requires crafted USB device or smart card that would present the system with specially crafted responses to the APDUs. This issue has been patched in version 0.27.0.
osv:UBUNTU-CVE-2025-66215
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
opensc
Fixed versions: Not specified
Complete source record
{
"id": "1517d1630106df5f11e19dbee57cce6ba5da5bbca70c7637cb5bb6cb9f304caf",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-66215",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-66215",
"summary": "OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to the computer at the time user or administrator uses a token can cause a stack-buffer-overflow WRITE in card-oberthur. The attack requires crafted USB device or smart card that would present the system with specially crafted responses to the APDUs. This issue has been patched in version 0.27.0.",
"evidence": "osv:UBUNTU-CVE-2025-66215",
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},
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
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{
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{
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{
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{
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{
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"affected_versions": [
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"evidence": "/affected/4/versions"
},
{
"value": "0.24.0~rc1-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1build2",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1ubuntu0.1~esm1",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1ubuntu0.1",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1ubuntu0.2",
"evidence": "/affected/4/versions"
},
{
"value": "0.25.0~rc1-1ubuntu0.2+esm1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
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"evidence": "/affected/5/versions"
},
{
"value": "0.26.1-2",
"evidence": "/affected/5/versions"
},
{
"value": "0.26.1-3",
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}
]
},
{
"name": {
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},
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"affected_versions": [
{
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"evidence": "/affected/6/versions"
},
{
"value": "0.27.1-2",
"evidence": "/affected/6/versions"
},
{
"value": "0.27.1-2ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "0.27.1-2ubuntu2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "opensc",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.26.1-3",
"evidence": "/affected/7/versions"
},
{
"value": "0.26.1-3ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "0.27.0~rc1-1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2025-66215",
"aliases": [
"UBUNTU-CVE-2025-66215"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
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"type": "ECOSYSTEM",
"events": [
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]
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],
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},
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"0.15.0-1ubuntu1+esm1",
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"0.15.0-1ubuntu1+esm3"
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},
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}
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},
"versions": [
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"0.17.0-2",
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"0.17.0-3ubuntu0.1~esm1",
"0.17.0-3ubuntu0.1~esm2",
"0.17.0-3ubuntu0.1~esm3"
],
"database_specific": {
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},
"ecosystem_specific": {
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},
{
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}
]
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{
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},
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},
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{
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},
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},
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]
}
},
{
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},
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},
{
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],
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},
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],
"database_specific": {
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},
"ecosystem_specific": {
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{
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},
{
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}
]
}
}
],
"modified": "2026-10-17T12:57:29.274323277Z",
"provider": "osv",
"upstream": [
"CVE-2025-66215"
],
"references": [
"https://ubuntu.com/security/CVE-2025-66215",
"https://www.cve.org/CVERecord?id=CVE-2025-66215"
]
},
"related_cves": [
{
"value": "CVE-2025-66215",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 357598,
"published_at": "2026-03-30T18:16:00+00:00"
}