Vulnerability in Cisco iOS Xr Software
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.
EPSS: 0.006 (46.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Ios Xr Software — versions 7.8.1, 7.8.12, 7.7.1
- Cisco Ios_xr — versions 7.7.1, 7.7.2, 7.7.21
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-20304?
- CVE-2024-20304 is a high-severity vulnerability in Cisco iOS Xr Software, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.6/10. Published 2024-09-11.
- How severe is CVE-2024-20304?
- High severity. CVSS v3 base score is 8.6 out of 10.