CVE-2026-58611

highpriority · track · 31EPSS 0.003 · 24 %ileDEUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (24th) EPSS

CVSS 7.8 · high

Is it mine?

5 products

Check your exposure

Who says so?

3 sources

cert_bund · msrc_csaf · nvd

EPSS · scored 2026-10-27

Improper authorization in XBox Gaming Services allows an authorized attacker to elevate privileges locally.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedXbox Gaming Servicesmsrc_csaf
37.114.10001.0:Security Update:https://apps.microsoft.com/detail/9mwpm2cqnlhn?hl=en-us&gl=US&ocid=pdpshare
https://apps.microsoft.com/detail/9mwpm2cqnlhn?hl=en-us&gl=US&ocid=pdpshare

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-285USCWE-285US

affected products (5)

Products and version ranges known to be affected.

Microsoft Apps Xbox Gaming Servicesall versionscert_bundDEcpe:/a:microsoft:apps:xbox_gaming_services
Microsoft Authenticator for Androidall versionscert_bundDEcpe:/a:microsoft:authenticator:::android
Microsoft Xbox Gaming Servicesall versionsfixedmsrc_csafUS
Microsoft Xbox Gaming Services< 37.114.10001.0msrc_csafUS
microsoft xbox gaming services< 37.114.10001.0nvdUScpe:2.3:a:microsoft:xbox_gaming_services:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3241Microsoft Apps: Mehrere Schwachstellen ermöglichen PrivilegieneskalationDeutsch2026-09-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Authenticator und Microsoft Xbox Gaming Services ausnutzen, um seine Privilegien zu erhöhen.
msrc_CVE-2026-58611Xbox Gaming Services Elevation of Privilege Vulnerability2026-09-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

sources

Which sources assert this record, and when.

cert_bund msrc_csaf nvd NVD CVE.org MITRE

published 2026-09-08modified 2026-09-14

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58611PatchVendor Advisory

scry

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