CVE-2020-5137 is a buffer overflow vulnerability in SonicWall SonicOS and SonicOSv that allows an unauthenticated remote attacker to cause a Denial of Service (DoS) by crashing the firewall's SSLVPN service. With a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, leading to high availability impact. While no public exploit code (Metasploit, Nuclei, ExploitDB) is available and it's not listed in CISA's KEV catalog, there has been some community discussion, indicating awareness of the issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 5.9.1.13CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | ||
>= 6.0.0.0, <= 6.0.5.3CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | ||
>= 6.5.0.0, <= 6.5.1.11CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | ||
>= 6.5.4.0, <= 6.5.4.7CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | ||
7.0.0.0CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:7.0.0.0:*:*:*:*:*:*:* |
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.
Remediation records are not available for this CVE.