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CVE-2019-11091
Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution…
- 5.6MediumCVSS base score
- 0.61%Exploitation in 30 daysEPSS · top 50% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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
Timeline
ID reserved
By intel
- 49 days later
· 49 days later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium5.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.61% · top 50% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.6.
Affected products
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
References
References22
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.synology.com/security/advisory/Synology_SA_19_24 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2019-1f5832fc0e (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2019:1505 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2019:1455 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3977-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20190620 [SECURITY] [DLA 1789-2] intel-microcode security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20190624 [SECURITY] [DSA 4447-2] intel-microcode security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20190624 [SECURITY] [DSA 4469-1] libvirt security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-003.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-616472.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2019:1805 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:1806 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FreeBSD-SA-19:07 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- RHSA-2019:2553 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://kc.mcafee.com/corporate/index?page=content&id=SB10292 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20191112 [SECURITY] [DSA 4564-1] linux security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-4602 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20200114 [SECURITY] [DSA 4602-1] xen security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- GLSA-202003-56 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-2795 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2019-11091)Record last updated .