CVE-2026-34341: Windows Link-Layer Discovery Protocol (LLDP) Elevation of Privilege Vulnerability
Double free in Windows Link-Layer Discovery Protocol (LLDP) allows an authorized attacker to elevate privileges locally.
Other sources
Windows Link-Layer Discovery Protocol (LLDP) Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- 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 10.0.26100.32860Fixed in 10.0.26100.32772Patch KB5087423 - Upgrade
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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 10.0.26100.8457Fixed in 10.0.26100.8390Patch KB5089466 - Upgrade
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Fixed in 10.0.26200.8457Fixed in 10.0.26200.8390Patch KB5089466 - Upgrade
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Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.22631.7079Patch KB5087420 - Upgrade
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Fixed in 10.0.19044.7291Patch KB5087544 - Upgrade
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Fixed in 10.0.25398.2330Patch KB5087541 - Upgrade
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Fixed in 10.0.22631.7219Patch KB5093998 - Upgrade
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Fixed in 10.0.17763.8755Patch KB5087538 - Upgrade
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Fixed in 10.0.20348.5139Fixed in 10.0.20348.5074Patch KB5087424
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34341?
The CVE-2026-34341 vulnerability has a high severity rating as it allows an attacker to elevate privileges locally.
How do I fix CVE-2026-34341?
To fix CVE-2026-34341, ensure that the latest security patches provided by Microsoft are installed for your affected Windows version.
Which versions of Windows are affected by CVE-2026-34341?
CVE-2026-34341 affects various versions, including Windows Server 2016, 2012 R2, 2012, Windows 10, and Windows 11.
Is a workaround available for CVE-2026-34341?
Currently, there is no official workaround suggested for CVE-2026-34341; applying updates is the recommended action.
Can CVE-2026-34341 be exploited remotely?
CVE-2026-34341 cannot be exploited remotely as it requires local access to the affected system.