CVE-2024-20311

HIGH
7.5
CVSS Score
Published: March 27, 2024 at 04:50 PM UTC
Updated: June 17, 2026 at 07:06 AM UTC
2 products affected across 1 vendorIOSIOS Xe

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

A vulnerability in the Locator ID Separation Protocol (LISP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to the incorrect handling of LISP packets. An attacker could exploit this vulnerability by sending a crafted LISP packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Note: This vulnerability could be exploited over either IPv4 or IPv6 transport.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

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16.1.116.1.216.1.316.10.116.10.1a16.10.1b16.10.1c16.10.1d16.10.1e16.10.1f16.10.1g16.10.1s16.10.216.10.316.11.116.11.1a16.11.1b16.11.1s16.11.216.12.116.12.1a16.12.1c16.12.1s16.12.1t16.12.1w16.12.1x16.12.1y16.12.1z116.12.1z216.12.216.12.2a16.12.2s16.12.316.12.3a16.12.3s16.12.416.12.4a16.12.516.12.5a16.12.5b16.12.616.12.6a16.12.716.12.816.12.916.2.116.2.216.3.116.3.1016.3.1116.3.1a16.3.216.3.316.3.416.3.516.3.5b16.3.616.3.716.3.816.3.916.4.116.4.216.4.316.5.116.5.1a16.5.1b16.5.216.5.316.6.116.6.1016.6.216.6.316.6.416.6.4a16.6.516.6.5a16.6.616.6.716.6.816.6.916.7.116.7.1a16.7.1b16.7.216.7.316.7.416.8.116.8.1a16.8.1b16.8.1c16.8.1d16.8.1e16.8.1s16.8.216.8.316.9.116.9.1a16.9.1b16.9.1s16.9.216.9.316.9.3a16.9.416.9.516.9.5f16.9.616.9.716.9.817.1.117.1.1a17.1.1s17.1.1t17.1.317.10.117.10.1a17.10.1b17.11.117.11.1a17.11.99SW17.11.99sw17.2.117.2.1a17.2.1r17.2.1v17.2.217.2.317.3.117.3.1a17.3.1w17.3.1x17.3.1z17.3.217.3.2a17.3.317.3.417.3.4a17.3.4b17.3.4c17.3.517.3.5a17.3.5b17.3.617.3.717.4.117.4.1a17.4.1b17.4.217.4.2a17.5.117.5.1a17.6.117.6.1a17.6.1w17.6.1x17.6.1y17.6.1z17.6.1z117.6.217.6.317.6.3a17.6.417.6.517.6.5a17.7.117.7.1a17.7.1b17.7.217.8.117.8.1a17.9.117.9.1a17.9.1w17.9.1x17.9.1x117.9.1y17.9.217.9.2a17.9.317.9.3a3.10.0E3.10.0S3.10.0cE3.10.0ce3.10.0e3.10.0s3.10.10S3.10.10s3.10.1E3.10.1S3.10.1e3.10.1s3.10.1xbS3.10.1xbs3.10.2E3.10.2S3.10.2e3.10.2s3.10.2tS3.10.2ts3.10.3E3.10.3S3.10.3e3.10.3s3.10.4S3.10.4s3.10.5S3.10.5s3.10.6S3.10.6s3.10.7S3.10.7s3.10.8S3.10.8aS3.10.8as3.10.8s3.10.9S3.10.9s3.11.0E3.11.0S3.11.0e3.11.0s3.11.1E3.11.1S3.11.1aE3.11.1ae3.11.1e3.11.1s3.11.2E3.11.2S3.11.2e3.11.2s3.11.3E3.11.3S3.11.3aE3.11.3ae3.11.3e3.11.3s3.11.4E3.11.4S3.11.4e3.11.4s3.11.5E3.11.5e3.11.6E3.11.6e3.11.7E3.11.7e3.11.8E3.11.8e3.12.0S3.12.0aS3.12.0as3.12.0s3.12.1S3.12.1s3.12.2S3.12.2s3.12.3S3.12.3s3.12.4S3.12.4s3.13.0S3.13.0aS3.13.0as3.13.0s3.13.10S3.13.10s3.13.1S3.13.1s3.13.2S3.13.2aS3.13.2as3.13.2s3.13.3S3.13.3s3.13.4S3.13.4s3.13.5S3.13.5aS3.13.5as3.13.5s3.13.6S3.13.6aS3.13.6as3.13.6s3.13.7S3.13.7aS3.13.7as3.13.7s3.13.8S3.13.8s3.13.9S3.13.9s3.14.0S3.14.0s3.14.1S3.14.1s3.14.2S3.14.2s3.14.3S3.14.3s3.14.4S3.14.4s3.15.0S3.15.0s3.15.1S3.15.1cS3.15.1cs3.15.1s3.15.2S3.15.2s3.15.3S3.15.3s3.15.4S3.15.4s3.16.0S3.16.0cS3.16.0cs3.16.0s3.16.10S3.16.10s3.16.1S3.16.1aS3.16.1as3.16.1s3.16.2S3.16.2aS3.16.2as3.16.2bS3.16.2bs3.16.2s3.16.3S3.16.3aS3.16.3as3.16.3s3.16.4S3.16.4aS3.16.4as3.16.4bS3.16.4bs3.16.4dS3.16.4ds3.16.4s3.16.5S3.16.5s3.16.6S3.16.6bS3.16.6bs3.16.6s3.16.7S3.16.7aS3.16.7as3.16.7bS3.16.7bs3.16.7s3.16.8S3.16.8s3.16.9S3.16.9s3.17.0S3.17.0s3.17.1S3.17.1aS3.17.1as3.17.1s3.17.2S3.17.2s3.17.3S3.17.3s3.17.4S3.17.4s3.18.0S3.18.0SP3.18.0aS3.18.0as3.18.0s3.18.0sp3.18.1S3.18.1SP3.18.1aSP3.18.1asp3.18.1bSP3.18.1bsp3.18.1cSP3.18.1csp3.18.1s3.18.1sp3.18.2S3.18.2SP3.18.2aSP3.18.2asp3.18.2s3.18.2sp3.18.3S3.18.3SP3.18.3aSP3.18.3asp3.18.3bSP3.18.3bsp3.18.3s3.18.3sp3.18.4S3.18.4SP3.18.4s3.18.4sp3.18.5SP3.18.5sp3.18.6SP3.18.6sp3.18.7SP3.18.7sp3.18.8aSP3.18.8asp3.18.9SP3.18.9sp3.7.0S3.7.0bS3.7.0bs3.7.0s3.7.1S3.7.1aS3.7.1as3.7.1s3.7.2S3.7.2s3.7.2tS3.7.2ts3.7.3S3.7.3s3.7.4S3.7.4aS3.7.4as3.7.4s3.7.5S3.7.5s3.7.6S3.7.6s3.7.7S3.7.7s3.8.0S3.8.0s3.8.1S3.8.1s3.8.2S3.8.2s3.9.0S3.9.0aS3.9.0as3.9.0s3.9.1E3.9.1S3.9.1aS3.9.1as3.9.1e3.9.1s3.9.2E3.9.2S3.9.2e3.9.2s

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-674

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