CVE-2020-3596 is a denial-of-service vulnerability in the Session Initiation Protocol (SIP) of Cisco Expressway Series and Cisco TelePresence Video Communication Server. An unauthenticated, remote attacker can exploit this by sending specially crafted SIP packets, leading to memory exhaustion and device crashes. The vulnerability has a CVSS score of 7.5 (High), indicating a low-complexity attack that requires no user interaction and can be executed over the network, resulting in a complete loss of availability. There is no evidence of active exploitation, nor is there publicly available exploit code in common repositories like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= x12.6.3CPE matchmatch criteria | cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:* | ||
<= x12.6.3CPE matchmatch criteria | cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/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.