CVE-2018-12127 (GCVE-0-2018-12127)

Vulnerability from cvelistv5 – Published: 2019-05-30 15:38 – Updated: 2026-05-29 20:09
VLAI
Summary
Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf
Severity
5.6 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • Information Disclosure
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
URL Tags
https://www.intel.com/content/www/us/en/security-… x_refsource_CONFIRM
https://www.synology.com/security/advisory/Synolo… x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2019:1455 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3977-3/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://seclists.org/bugtraq/2019/Jun/28 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Jun/36 mailing-listx_refsource_BUGTRAQ
http://www.arubanetworks.com/assets/alert/ARUBA-P… x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s… x_refsource_CONFIRM
http://www.huawei.com/en/psirt/security-advisorie… x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://www.freebsd.org/security/advisories/FreeB… vendor-advisoryx_refsource_FREEBSD
https://access.redhat.com/errata/RHSA-2019:2553 vendor-advisoryx_refsource_REDHAT
https://kc.mcafee.com/corporate/index?page=conten… x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s… x_refsource_CONFIRM
https://security.FreeBSD.org/advisories/FreeBSD-S… vendor-advisoryx_refsource_FREEBSD
https://seclists.org/bugtraq/2019/Nov/16 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Nov/15 mailing-listx_refsource_BUGTRAQ
http://packetstormsecurity.com/files/155281/FreeB… x_refsource_MISC
https://www.debian.org/security/2020/dsa-4602 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2020/Jan/21 mailing-listx_refsource_BUGTRAQ
https://security.gentoo.org/glsa/202003-56 vendor-advisoryx_refsource_GENTOO
Impacted products
Vendor Product Version
Intel Corporation Central Processing Units (CPUs) Affected: A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf
Create a notification for this product.
Date Public
2019-05-14 00:00
Show details on NVD website
To clipboard 

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    "assignerShortName": "intel",
    "cveId": "CVE-2018-12127",
    "datePublished": "2019-05-30T15:38:38.000Z",
    "dateReserved": "2018-06-11T00:00:00.000Z",
    "dateUpdated": "2026-05-29T20:09:09.875Z",
    "state": "PUBLISHED"
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      "date": "2026-07-15",
      "epss": "0.01497",
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      "published": "2019-05-30T16:29:00.903",
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      "sourceIdentifier": "secure@intel.com",
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    },
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      "dataType": "CVE_RECORD",
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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.