CVE-2026-88193: Microsoft Scripting Engine Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft Scripting Engine allows an authorized attacker to elevate privileges locally.
Other sources
Microsoft Scripting Engine Elevation of Privilege 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 10.0.17763.9376Patch KB5126651 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - 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 10.0.26100.33650Patch KB5126646 - 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 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
Can this be exploited remotely?
No. The attack vector is local, so an attacker must be able to execute or trigger activity on the affected system locally.
What level of access and interaction does exploitation require?
The attacker needs low privileges, meaning some existing authorized access is required. No user interaction is required according to the supplied vector.
What could happen after successful exploitation?
Successful exploitation can result in elevated privileges. The supplied severity vector rates confidentiality, integrity, and availability impact as high.