CVE-2026-70024: Windows Internet Information Services Remote Code Execution Vulnerability
Stack-based buffer overflow in Windows Internet Information Services allows an unauthorized attacker to execute code over a network.
Other sources
Windows Internet Information Services Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26434Patch KB5126835
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The issue can be exploited remotely over a network by an unauthorized attacker. No prior privileges or user interaction are required.
Which systems should be prioritized for investigation?
Prioritize systems running Windows Internet Information Services on the listed Windows 10, Windows 11, and Windows Server versions, especially IIS instances reachable from untrusted networks.
What is the potential impact of successful exploitation?
Successful exploitation can allow remote code execution, with high impact to confidentiality, integrity, and availability.