CVE-2026-35424: Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability
Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability
Other sources
Missing release of memory after effective lifetime in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network.
— 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 6.2.9200.26079Patch KB5087470 - Upgrade
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Fixed in 10.0.14393.9140Patch KB5087537 - Upgrade
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Fixed in 6.3.9600.23181Patch KB5087471 - Upgrade
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Fixed in 10.0.28000.2113Patch KB5089548 - Upgrade
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Fixed in 10.0.26100.8457Fixed in 10.0.26100.8390Patch KB5089466 - Upgrade
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Fixed in 10.0.26100.32860Fixed in 10.0.26100.32772Patch KB5087423 - Upgrade
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Fixed in 10.0.25398.2330Patch KB5087541 - Upgrade
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Fixed in 10.0.26200.8457Fixed in 10.0.26200.8390Patch KB5089466 - Upgrade
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Fixed in 10.0.22631.7079Patch KB5087420 - Upgrade
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Fixed in 10.0.22631.7219Patch KB5093998 - Upgrade
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Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.19044.7291Patch KB5087544 - Upgrade
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Fixed in 10.0.20348.5139Fixed in 10.0.20348.5074Patch KB5087424 - Upgrade
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Fixed in 10.0.17763.8755Patch KB5087538
Event History
Frequently Asked Questions
What is the severity of CVE-2026-35424?
CVE-2026-35424 has been classified as a Denial of Service vulnerability affecting the IKE Protocol.
How do I fix CVE-2026-35424?
To fix CVE-2026-35424, apply the relevant security patches provided by Microsoft for the affected software.
What products are affected by CVE-2026-35424?
CVE-2026-35424 affects various Microsoft products, including Windows Server 2012, Windows 10, and Windows 11.
Can CVE-2026-35424 be exploited remotely?
Yes, CVE-2026-35424 can be exploited by an unauthorized attacker to cause a Denial of Service remotely.
Is there a workaround for CVE-2026-35424?
Currently, applying the provided security updates is the recommended mitigation for CVE-2026-35424.