FKIE_CVE-2021-33626

Vulnerability from fkie_nvd - Published: 2021-10-01 03:15 - Updated: 2025-11-04 20:16
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.
References
cve@mitre.orghttps://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20220216-0006/Third Party Advisory
cve@mitre.orghttps://www.insyde.com/security-pledgeVendor Advisory
cve@mitre.orghttps://www.insyde.com/security-pledge/SA-2021001Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220216-0006/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledgeVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledge/SA-2021001Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/796611
Impacted products
Vendor Product Version
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
siemens ruggedcom_apr1808_firmware -
siemens ruggedcom_apr1808 -
siemens simatic_field_pg_m5_firmware -
siemens simatic_field_pg_m5 -
siemens simatic_field_pg_m6_firmware -
siemens simatic_field_pg_m6 -
siemens simatic_ipc127e_firmware -
siemens simatic_ipc127e -
siemens simatic_ipc227g_firmware -
siemens simatic_ipc227g -
siemens simatic_ipc277g_firmware -
siemens simatic_ipc277g -
siemens simatic_ipc327g_firmware -
siemens simatic_ipc327g -
siemens simatic_ipc377g_firmware -
siemens simatic_ipc377g -
siemens simatic_ipc427e_firmware -
siemens simatic_ipc427e -
siemens simatic_ipc477e_firmware -
siemens simatic_ipc477e -
siemens simatic_ipc477e_pro_firmware -
siemens simatic_ipc477e_pro -
siemens simatic_ipc627e_firmware -
siemens simatic_ipc627e -
siemens simatic_ipc647e_firmware -
siemens simatic_ipc647e -
siemens simatic_ipc677e_firmware -
siemens simatic_ipc677e -
siemens simatic_ipc847e_firmware -
siemens simatic_ipc847e -
siemens simatic_itp1000_firmware -
siemens simatic_itp1000 -
To clipboard 

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  "cveTags": [],
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  "published": "2021-10-01T03:15:06.593",
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20220216-0006/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.insyde.com/security-pledge"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.insyde.com/security-pledge/SA-2021001"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.kb.cert.org/vuls/id/796611"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-829"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.