CVE-2026-68898: Windows iSCSI Denial of Service Vulnerability
Published Sep 8, 2026
·Updated
Out-of-bounds read in Windows iSCSI allows an unauthorized attacker to deny service over a network.
Other sources
Windows iSCSI Denial of Service Vulnerability
— Microsoft
Affected Software
54 affected componentsFixes available
Microsoft Windows 10=1607
10.0.14393.9512
Microsoft Windows 10=1607
10.0.14393.9512
Microsoft Windows Server 2016<10.0.14393.9512
10.0.14393.9512
Microsoft Windows Server 2012<6.2.9200.26349
6.2.9200.26349
Microsoft Windows Server 2012<6.2.9200.26349
6.2.9200.26349
Microsoft Windows Server 2012 R2<6.3.9600.23397
6.3.9600.23397
Microsoft Windows Server 2016<10.0.14393.9512
10.0.14393.9512
Microsoft Windows Server 2012 R2<6.3.9600.23397
6.3.9600.23397
Microsoft Windows 10=1809
10.0.17763.9245
Microsoft Windows 11=26H1
10.0.28000.2954
Microsoft Windows 11=26H1
10.0.28000.2954
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows 11=24H2
10.0.26100.9445
Microsoft Windows 11=24H2
10.0.26100.9445
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows Server 2025<10.0.26100.33438
10.0.26100.33438
Microsoft Windows Server 2025<10.0.26100.33438
10.0.26100.33438
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows 11=25H2
10.0.26200.9445
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows Server 2019<10.0.17763.9245
10.0.17763.9245
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows Server 2022<10.0.20348.5622
10.0.20348.5622
Microsoft Windows Server 2022<10.0.20348.5622
10.0.20348.5622
Microsoft Windows Server 2019<10.0.17763.9245
10.0.17763.9245
Microsoft Windows 10=1809
10.0.17763.9245
Microsoft Windows 11=25H2
10.0.26200.9445
Microsoft Windows 10 1607<10.0.14393.9512
Microsoft Windows 10 1607<10.0.14393.9512
Microsoft Windows 10 1809<10.0.17763.9245
Microsoft Windows 10 1809<10.0.17763.9245
Microsoft Windows 10 21h2<10.0.19044.7725
Microsoft Windows 10 21h2<10.0.19044.7725
Microsoft Windows 10 21h2<10.0.19044.7725
Microsoft Windows 10 22h2<10.0.19045.7725
Microsoft Windows 10 22h2<10.0.19045.7725
Microsoft Windows 10 22h2<10.0.19045.7725
Microsoft Windows 11 23h2<10.0.22631.7582
Microsoft Windows 11 23h2<10.0.22631.7582
Microsoft Windows 11 24h2<10.0.26100.9445
Microsoft Windows 11 24h2<10.0.26100.9445
Microsoft Windows 11 25h2<10.0.26200.9445
Microsoft Windows 11 25h2<10.0.26200.9445
Microsoft Windows 11 26h1<10.0.28000.2954
Microsoft Windows 11 26h1<10.0.28000.2954
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.9512
Microsoft Windows Server 2019<10.0.17763.9245
Microsoft Windows Server 2022<10.0.20348.5622
Microsoft Windows Server 2025<10.0.26100.33438
Remediation
Event History
Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·05:14 PM
Data Sourced
via MITRE·05:14 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What access does an attacker need to exploit this issue?
The attacker does not need authorization and can attack over the network. Exploitation requires user interaction, according to the supplied vector.
2
What is the expected impact if exploitation succeeds?
The documented impact is denial of service. No confidentiality or integrity impact is indicated.
3
Which systems should be evaluated?
Evaluate Microsoft Windows 10, Windows 11, and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025 systems that use Windows iSCSI.