CVE-2026-50696: Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability
Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network.
Other sources
Internet Key Exchange (IKE) Protocol Denial of Service 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 10.0.20348.5386Patch KB5099540 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2525Patch KB5101649 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9020Patch KB5099538 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7376Patch KB5099414
Event History
Frequently Asked Questions
What is the severity of CVE-2026-50696?
CVE-2026-50696 has a high severity rating of 7.5 according to the CVSS 3.1 metrics.
How do I fix CVE-2026-50696?
To fix CVE-2026-50696, ensure that you install the latest security updates provided by Microsoft for your Windows operating system.
What type of vulnerability is CVE-2026-50696?
CVE-2026-50696 is classified as a heap-based buffer overflow vulnerability within the Internet Key Exchange (IKE) Protocol.
Who is affected by CVE-2026-50696?
CVE-2026-50696 affects users of Microsoft Windows 10, Windows 11, and Windows Server versions 2019, 2022, and 2025.
What impact does CVE-2026-50696 have on systems?
CVE-2026-50696 allows an unauthorized attacker to potentially cause a denial of service over a network.