CVE-2017-3876 is a denial-of-service vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers, specifically affecting devices running release 6.1.1 with the gRPC service enabled. An unauthenticated, remote attacker can exploit this by repeatedly sending gRPC requests, leading to a device crash requiring manual recovery. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, impacting availability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant media coverage, though it has received some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
6.1.0CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:6.1.0:*:*:*:*:*:*:* | ||
6.1.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xr:6.1.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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.