CVE-2019-11091 (GCVE-0-2019-11091)

Vulnerability from cvelistv5 – Published: 2019-05-30 15:28 – Updated: 2026-05-28 18:17
VLAI
Summary
Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory 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 · CISA-ADP (v2.0.3)
Decision recorded 2026-05-28 18:16 UTC
CWE
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://seclists.org/bugtraq/2019/Nov/15 mailing-listx_refsource_BUGTRAQ
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 CPE status
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
guessed Create a notification for this product.
Date Public
2019-05-14 00:00
Show details on NVD website
To clipboard 

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                  "name": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en",
                  "refsource": "CONFIRM",
                  "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en"
                },
                {
                  "name": "openSUSE-SU-2019:1805",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00053.html"
                },
                {
                  "name": "openSUSE-SU-2019:1806",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00052.html"
                },
                {
                  "name": "FreeBSD-SA-19:07",
                  "refsource": "FREEBSD",
                  "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-19:07.mds.asc"
                },
                {
                  "name": "RHSA-2019:2553",
                  "refsource": "REDHAT",
                  "url": "https://access.redhat.com/errata/RHSA-2019:2553"
                },
                {
                  "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10292",
                  "refsource": "CONFIRM",
                  "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10292"
                },
                {
                  "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf",
                  "refsource": "CONFIRM",
                  "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf"
                },
                {
                  "name": "20191112 [SECURITY] [DSA 4564-1] linux security update",
                  "refsource": "BUGTRAQ",
                  "url": "https://seclists.org/bugtraq/2019/Nov/15"
                },
                {
                  "name": "DSA-4602",
                  "refsource": "DEBIAN",
                  "url": "https://www.debian.org/security/2020/dsa-4602"
                },
                {
                  "name": "20200114 [SECURITY] [DSA 4602-1] xen security update",
                  "refsource": "BUGTRAQ",
                  "url": "https://seclists.org/bugtraq/2020/Jan/21"
                },
                {
                  "name": "GLSA-202003-56",
                  "refsource": "GENTOO",
                  "url": "https://security.gentoo.org/glsa/202003-56"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce",
        "assignerShortName": "intel",
        "cveId": "CVE-2019-11091",
        "datePublished": "2019-05-30T15:28:28.000Z",
        "dateReserved": "2019-04-11T00:00:00.000Z",
        "dateUpdated": "2026-05-28T18:17:01.249Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.



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.