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CVE-2024-20314

HIGHCVSS 7.5/10EPSS 0.80%

Last modified

CVE-2024-20314 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.80%

52.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos Xe16.1.1
CiscoIos Xe16.1.2
CiscoIos Xe16.1.3
CiscoIos Xe16.2.1
CiscoIos Xe16.2.2
CiscoIos Xe16.3.1
CiscoIos Xe16.3.1a
CiscoIos Xe16.3.2
CiscoIos Xe16.3.3
CiscoIos Xe16.3.4
CiscoIos Xe16.3.5
CiscoIos Xe16.3.5b
CiscoIos Xe16.3.6
CiscoIos Xe16.3.7
CiscoIos Xe16.3.8
CiscoIos Xe16.3.9
CiscoIos Xe16.3.10
CiscoIos Xe16.3.11
CiscoIos Xe16.4.1
CiscoIos Xe16.4.2
CiscoIos Xe16.4.3
CiscoIos Xe16.5.1
CiscoIos Xe16.5.1a
CiscoIos Xe16.5.1b
CiscoIos Xe16.5.2
CiscoIos Xe16.5.3
CiscoIos Xe16.6.1
CiscoIos Xe16.6.2
CiscoIos Xe16.6.3
CiscoIos Xe16.6.4
CiscoIos Xe16.6.4a
CiscoIos Xe16.6.5
CiscoIos Xe16.6.5a
CiscoIos Xe16.6.6
CiscoIos Xe16.6.7
CiscoIos Xe16.6.8
CiscoIos Xe16.6.9
CiscoIos Xe16.6.10
CiscoIos Xe16.7.1
CiscoIos Xe16.7.1a
CiscoIos Xe16.7.1b
CiscoIos Xe16.7.2
CiscoIos Xe16.7.3
CiscoIos Xe16.7.4
CiscoIos Xe16.8.1
CiscoIos Xe16.8.1a
CiscoIos Xe16.8.1b
CiscoIos Xe16.8.1c
CiscoIos Xe16.8.1d
CiscoIos Xe16.8.1e

Showing 50 of 186 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20314?
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.
How severe is CVE-2024-20314?
CVE-2024-20314 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20314?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST