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CVE-2026-112967 Windows Xbox Live Networking Service Remote Code Execution Vulnerability

9.8 criticalEPSS 1.2%

Critical (9.8) in microsoft. EPSS 1.2% estimated probability of exploitation activity in the next 30 days.

On this page
Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized attacker to execute code over a network.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.2% estimated probability of exploitation activity in the next 30 days; 67th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: yes · Technical impact: total, assessed 2026-11-05. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-122 Heap-based Buffer Overflow
Published
Modified
Assigned by
microsoft (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • microsoft:windows 10 version 1809
  • microsoft:windows 10 version 21h2
  • microsoft:windows 10 version 22h2
  • microsoft:windows 11 version 23h2
  • microsoft:windows 11 version 24h2
  • microsoft:windows 11 version 25h2
  • microsoft:windows 11 version 26h1
  • microsoft:windows 11 version 26h2

Versions

From the CNA's record in the CVE List.

ProductAffected
Microsoft Windows 10 Version 1809from 10.0.17763.0 before 10.0.17763.9487
Microsoft Windows 10 Version 21H2from 10.0.19044.0 before 10.0.19044.7846
Microsoft Windows 10 Version 22H2from 10.0.19045.0 before 10.0.19045.7846
Microsoft Windows 11 version 23H2from 10.0.22631.0 before 10.0.22631.7711
Microsoft Windows 11 Version 23H2from 10.0.22631.0 before 10.0.22631.7711
Microsoft Windows 11 Version 24H2from 10.0.26100.0 before 10.0.26100.9974
Microsoft Windows 11 Version 25H2from 10.0.26200.0 before 10.0.26200.9974
Microsoft Windows 11 version 26H1from 10.0.28000.0 before 10.0.28000.3501
Microsoft Windows 11 Version 26H2from 10.0.26300.0 before 10.0.26300.9974

Attack patterns (CAPEC)

  • CAPEC-92 Forced Integer Overflow Likelihood: High · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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