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CVE-2024-20314

HIGH
7.5
CVSS Score
Published: March 27, 2024 at 04:57 PM UTC
Updated: June 17, 2026 at 07:06 AM UTC
1 product affected across 1 vendorIOS Xe

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

Description

A vulnerability in the IPv4 Software-Defined Access (SD-Access) fabric edge node feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause high CPU utilization and stop all traffic processing, resulting in a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain IPv4 packets. An attacker could exploit this vulnerability by sending certain IPv4 packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition.

Affected

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

IOS Xe· Cisco
95%
16.1.116.1.216.1.316.10.116.10.1a16.10.1b16.10.1c16.10.1d16.10.1e16.10.1f16.10.1g16.10.1s16.10.216.10.316.11.116.11.1a16.11.1b16.11.1s16.11.216.12.116.12.1016.12.10a16.12.1116.12.1a16.12.1c16.12.1s16.12.1t16.12.1w16.12.1x16.12.1y16.12.1z116.12.1z216.12.216.12.2a16.12.2s16.12.316.12.3a16.12.3s16.12.416.12.4a16.12.516.12.5a16.12.5b16.12.616.12.6a16.12.716.12.816.12.916.2.116.2.216.3.116.3.1016.3.1116.3.1a16.3.216.3.316.3.416.3.516.3.5b16.3.616.3.716.3.816.3.916.4.116.4.216.4.316.5.116.5.1a16.5.1b16.5.216.5.316.6.116.6.1016.6.216.6.316.6.416.6.4a16.6.516.6.5a16.6.616.6.716.6.816.6.916.7.116.7.1a16.7.1b16.7.216.7.316.7.416.8.116.8.1a16.8.1b16.8.1c16.8.1d16.8.1e16.8.1s16.8.216.8.316.9.116.9.1a16.9.1b16.9.1s16.9.216.9.316.9.3a16.9.416.9.516.9.5f16.9.616.9.716.9.817.1.117.1.1a17.1.1s17.1.1t17.1.317.10.117.10.1a17.10.1b17.11.117.11.1a17.11.99SW17.11.99sw17.12.117.12.1a17.12.1w17.12.217.12.2a17.2.117.2.1a17.2.1r17.2.1v17.2.217.2.317.3.117.3.1a17.3.1w17.3.1x17.3.1z17.3.217.3.2a17.3.317.3.417.3.4a17.3.4b17.3.4c17.3.517.3.5a17.3.5b17.3.617.3.717.3.817.3.8a17.4.117.4.1a17.4.1b17.4.217.4.2a17.5.117.5.1a17.6.117.6.1a17.6.1w17.6.1x17.6.1y17.6.1z17.6.1z117.6.217.6.317.6.3a17.6.417.6.517.6.5a17.6.617.6.6a17.7.117.7.1a17.7.1b17.7.217.8.117.8.1a17.9.117.9.1a17.9.1w17.9.1x17.9.1x117.9.1y17.9.1y117.9.217.9.2a17.9.317.9.3a17.9.417.9.4a

Remediation

No guide yet

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

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-sda-edge-dos-qZWuWXWG

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-783

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