CASCACascade Atlas

Evidence dossier

CVE-2017-11826

CVE-2017-11826

77.6–96.3Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.

State
PUBLISHED
Published
Oct 13, 2017
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS81.45%

2026-07-18 · v2026.06.15 · percentile 99.6%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

microsoftoriginal assertion
container

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.

CISA KEVoriginal assertion
observed_exploitation

Microsoft Office Remote Code Execution Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.814540000000; percentile 0.995990000000

Applicability

Cited product scope

Trace impact →
Microsoft CorporationMicrosoft Office
[{"status": "affected", "version": "Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server."}]unknown
Unknown vendorUnknown product
cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:office_online_server:2016:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:office_web_apps_server:2010:sp2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:word:2010:sp2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:word:2013:sp1:*:*:-:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:word:2013:sp1:*:*:rt:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

7.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:M/Au:N/C:C/I:C/A:C
7.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.