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CVE-2020-3118

KEV
Updated Oct 21, 2025 · PUBLISHED
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Description

Cisco IOS XR improperly validates string input from certain fields in Cisco Discovery Protocol messages. Exploitation could allow an unauthenticated, adjacent attacker to execute code with administrative privileges or cause a reload on an affected device.

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Affected packages

PackageVendor / ProductVersion rangeStatus
Cisco IOS XR SoftwareCisco / Cisco IOS XR Software>= unspecified, < 6.6.3affected