CVE-2019-16022 describes multiple denial-of-service vulnerabilities in Cisco IOS XR Software's BGP EVPN functionality. These flaws arise from incorrect processing of BGP update messages containing crafted EVPN attributes. An unauthenticated, remote attacker can exploit this by sending malformed BGP EVPN updates, causing the BGP process to restart and leading to a denial of service. The vulnerability has a CVSS score of 8.6 (HIGH), indicating a severe impact. It is a network-based attack with low complexity, requiring no user interaction, and can lead to a complete loss of availability. While the attacker needs to be a configured BGP peer or inject messages into an existing BGP connection, the potential for disruption is significant. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting it has not garnered significant public attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
6.6.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:6.6.1:*:*:*:*:*:*:* | ||
6.6.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:6.6.2:*:*:*:*:*:*:* | ||
6.6.25CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:6.6.25:*:*:*:*:*:*:* | ||
7.0.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.