What’s Vulnerable › Vulnerabilities
CVE-2024-20304: Cisco IOS XR Software Packet Memory Exhaustion Vulnerability
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-09-11 · updated 2026-06-17
- Weakness: CWE-401
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.
Affected products
- Cisco IOS XR Software: 7.7.1, 7.7.2, 7.7.21, 7.8.1, 7.8.2, 7.8.12 (+12)
References
Get alerted when CVE-2024-20304 or the next vulnerability affects your stack