CVE-2019-1845 is a high-severity denial-of-service vulnerability affecting the authentication service of Cisco Unified Communications Manager IM and Presence, Cisco TelePresence Video Communication Server, and Cisco Expressway Series. An unauthenticated, remote attacker can exploit this by sending a malformed XMPP authentication request, leading to an unexpected restart of the authentication service and preventing new user authentications. The vulnerability has a CVSS score of 8.6, indicating a network-based attack with low complexity and high impact on availability. While no public exploit code or active exploitation is reported, it has garnered some community attention and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= x8.1, <= x12.5.2CPE matchmatch criteria | cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:* | ||
11.5\(1\)CPE matchmatch criteria | cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:* |
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.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.