Vulnerability-Lookup

oesa-2026-2545

Vulnerability from osv_openeuler

Published

2026-06-05 11:11

Modified

2026-08-06 11:11

Summary

opensc security update

Details

OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as authentication, mail encryption and digital signatures. OpenSC implements the standard APIs to smart cards, e.g. PKCS#11 API, Windows’ Smart Card Minidriver and macOS Tokend.

Security Fix(es):

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 GET RESPONSE. 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.(CVE-2025-49010)

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.(CVE-2025-66037)

Severity

6.8 (Medium)


                    
                      CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-49010	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-66037	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "opensc-0.23.0-8.oe2403sp1.aarch64.rpm",
          "opensc-debuginfo-0.23.0-8.oe2403sp1.aarch64.rpm",
          "opensc-debugsource-0.23.0-8.oe2403sp1.aarch64.rpm",
          "opensc-help-0.23.0-8.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "opensc-0.23.0-8.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "opensc-0.23.0-8.oe2403sp1.x86_64.rpm",
          "opensc-debuginfo-0.23.0-8.oe2403sp1.x86_64.rpm",
          "opensc-debugsource-0.23.0-8.oe2403sp1.x86_64.rpm",
          "opensc-help-0.23.0-8.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "opensc",
        "purl": "pkg:rpm/openEuler/opensc\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.23.0-8.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as authentication, mail encryption and digital signatures. OpenSC implements the standard APIs to smart cards, e.g. PKCS#11 API, Windows\u2019 Smart Card Minidriver and macOS Tokend.\r\n\r\nSecurity Fix(es):\n\nOpenSC 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 GET RESPONSE. 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.(CVE-2025-49010)\n\nOpenSC 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.(CVE-2025-66037)",
  "id": "OESA-2026-2545",
  "modified": "2026-08-06T11:11:29Z",
  "published": "2026-06-05T11:11:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2545"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49010"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66037"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "opensc security update",
  "upstream": [
    "CVE-2025-49010",
    "CVE-2025-66037"
  ]
}

CVE-2025-49010 (GCVE-0-2025-49010)

Vulnerability from cvelistv5 – Published: 2026-03-30 16:59 – Updated: 2026-03-30 18:38

Title

OpenSC: Stack-buffer-overflow WRITE in GET RESPONSE

Summary

Severity

3.8 (Low)


                        
                          CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-30 18:38 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/OpenSC/OpenSC/security/advisor…	x_refsource_CONFIRM
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
OpenSC	OpenSC	Affected: < 0.27.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-49010",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T18:38:16.196764Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-30T18:38:21.684Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenSC",
          "vendor": "OpenSC",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.27.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 GET RESPONSE. 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121: Stack-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-30T16:59:25.810Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5cf-5wmx-9wh4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5cf-5wmx-9wh4"
        },
        {
          "name": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010"
        }
      ],
      "source": {
        "advisory": "GHSA-q5cf-5wmx-9wh4",
        "discovery": "UNKNOWN"
      },
      "title": "OpenSC: Stack-buffer-overflow WRITE in GET RESPONSE"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-49010",
    "datePublished": "2026-03-30T16:59:25.810Z",
    "dateReserved": "2025-05-29T16:34:07.176Z",
    "dateUpdated": "2026-03-30T18:38:21.684Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-66037 (GCVE-0-2025-66037)

Vulnerability from cvelistv5 – Published: 2026-03-30 17:01 – Updated: 2026-03-30 20:14

Title

OpenSC: Out of Bounds vulnerability

Summary

Severity

3.9 (Low)


                        
                          CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-30 20:14 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/OpenSC/OpenSC/security/advisor…	x_refsource_CONFIRM
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66037	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
OpenSC	OpenSC	Affected: < 0.27.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-66037",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T20:14:26.757382Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-30T20:14:39.203Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenSC",
          "vendor": "OpenSC",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.27.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.9,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-30T17:01:27.790Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-m58q-rmjm-mmfx",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-m58q-rmjm-mmfx"
        },
        {
          "name": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66037",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66037"
        }
      ],
      "source": {
        "advisory": "GHSA-m58q-rmjm-mmfx",
        "discovery": "UNKNOWN"
      },
      "title": "OpenSC: Out of Bounds vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-66037",
    "datePublished": "2026-03-30T17:01:27.790Z",
    "dateReserved": "2025-11-21T01:08:02.615Z",
    "dateUpdated": "2026-03-30T20:14:39.203Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

oesa-2026-2545

Vulnerability from osv_openeuler

CVE-2025-49010 (GCVE-0-2025-49010)

CVE-2025-66037 (GCVE-0-2025-66037)

Tags

Sightings

Nomenclature

Related by attack behaviour