CVE-2018-0257 is a denial-of-service vulnerability affecting Cisco IOS XE Software on Cisco cBR Series Converged Broadband Routers. It allows an unauthenticated, adjacent attacker to cause high CPU usage by sending specially crafted DHCP packets. Rated Medium severity (CVSS 4.3), the attack requires network adjacency but no user interaction, leading to a DoS condition. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.18, <= 3.18.4CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* | ||
>= 16.6, <= 16.6.3CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* | ||
> 16.7, <= 16.7.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* | ||
15.6\(2\)spCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:15.6\(2\)sp:*:*:*:*:*:*:* | ||
16.4CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.4:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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.