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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
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
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.