CVE-2020-3574 is a denial-of-service vulnerability affecting Cisco IP Phones, stemming from insufficient TCP ingress packet rate limiting. An unauthenticated, remote attacker can exploit this by sending a high volume of crafted TCP traffic, causing the phone to stop responding, drop calls, or reload. With a CVSS score of 7.5 (HIGH), the attack is network-based and low complexity, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.8.1CPE matchmatch criteria | cpe:2.3:o:cisco:ip_dect_210_firmware:*:*:*:*:*:*:*:* | ||
< 4.8.1CPE matchmatch criteria | cpe:2.3:o:cisco:ip_dect_6825_firmware:*:*:*:*:*:*:*:* | ||
< 11.3.2CPE matchmatch criteria | cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:* | ||
< 11.3.2CPE matchmatch criteria | cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:* | ||
< 11.3.2CPE matchmatch criteria | cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/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.