Windows Narrator Braille Elevation of Privilege Vulnerability (Microsoft Windows 10 Version 1809)

CVE-2026-56174

HIGH 7.8

At a glance

Source: NVD
EPSS: EPSS 0.46 % · percentile 40 (2026-10-31)
State: PUBLISHED
Published: 2026-08-11 17:03 UTC
Updated: 2026-10-30 17:19 UTC
Assigner: microsoft
NVD status: Analyzed

Search on…

Description

Untrusted search path in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.

Weaknesses (CWE)

CWE-426 — Untrusted Search Path

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56174

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · secure@microsoft.com (Secondary)

European references

ENISA EUVD · EUVD-2026-56288
GCVE · GCVE-0-2026-56174

CERT-FR advisories

CERTFR-2026-AVI-1001 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* < 10.0.17763.9115
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* < 10.0.17763.9115
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* < 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* < 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* < 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* < 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* < 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* < 10.0.19045.7663
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* < 10.0.22631.7517
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* < 10.0.22631.7517
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* < 10.0.17763.9115
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* < 10.0.20348.5440
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* < 10.0.26100.33222

Affected products

Product	Versions
Microsoft · Windows 10 Version 1809	affected 10.0.17763.0 < 10.0.17763.9121
Microsoft · Windows 10 Version 21H2	affected 10.0.19044.0 < 10.0.19044.7663
Microsoft · Windows 10 Version 22H2	affected 10.0.19045.0 < 10.0.19045.7663
Microsoft · Windows 11 version 23H2	affected 10.0.22631.0 < 10.0.22631.7517
Microsoft · Windows 11 Version 23H2	affected 10.0.22631.0 < 10.0.22631.7517
Microsoft · Windows Server 2019	affected 10.0.17763.0 < 10.0.17763.9121
Microsoft · Windows Server 2019 (Server Core installation)	affected 10.0.17763.0 < 10.0.17763.9121
Microsoft · Windows Server 2022	affected 10.0.20348.0 < 10.0.20348.5499
Microsoft · Windows Server 2025	affected 10.0.26100.0 < 10.0.26100.33296
Microsoft · Windows Server 2025 (Server Core installation)	affected 10.0.26100.0 < 10.0.26100.33296

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD