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CVE-2024-20304

HIGHCVSS 7.5/10EPSS 0.60%

Last modified

CVE-2024-20304 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the multicast traceroute version 2 (Mtrace2) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust the UDP packet memory of an affected device. This vulnerability exists because the Mtrace2 code does not properly handle packet memory. An attacker could exploit this vulnerability by sending crafted packets to an affected device. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

A vulnerability in the multicast traceroute version 2 (Mtrace2) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust the UDP packet memory of an affected device. This vulnerability exists because the Mtrace2 code does not properly handle packet memory. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to exhaust the incoming UDP packet memory. The affected device would not be able to process higher-level UDP-based protocols packets, possibly causing a denial of service (DoS) condition. Note: This vulnerability can be exploited using IPv4 or IPv6.

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
0.60%

44.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos Xr7.7.1
CiscoIos Xr7.7.2
CiscoIos Xr7.7.21
CiscoIos Xr7.8.1
CiscoIos Xr7.8.2
CiscoIos Xr7.8.12
CiscoIos Xr7.8.22
CiscoIos Xr7.9.1
CiscoIos Xr7.9.2
CiscoIos Xr7.9.21
CiscoIos Xr7.10.1
CiscoIos Xr7.10.2
CiscoIos Xr7.11.1
CiscoIos Xr7.11.2
CiscoIos Xr24.1.1
CiscoIos Xr24.1.2
CiscoIos Xr24.2.1
CiscoIos Xr24.2.11

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20304?
A vulnerability in the multicast traceroute version 2 (Mtrace2) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust the UDP packet memory of an affected device. This vulnerability exists because the Mtrace2 code does not properly handle packet memory. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to exhaust the incoming UDP packet memory. The affected device would not be able to process higher-level UDP-based protocols packets, possibly causing a denial of service (DoS) condition. Note: This vulnerability can be exploited using IPv4 or IPv6.
How severe is CVE-2024-20304?
CVE-2024-20304 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20304?
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.

Are you affected by CVE-2024-20304?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST