CVE-2023-0656 is a stack-based buffer overflow vulnerability in SonicOS that affects SonicWall firewalls. This flaw allows a remote, unauthenticated attacker to trigger a Denial of Service (DoS) by crashing the device. With a CVSS score of 7.5 (HIGH) and an EPSS score indicating high exploitability potential, this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to significant service disruption. While there is no public exploit code or active exploitation reported, the vulnerability has garnered considerable community and media attention, with over 178,000 SonicWall firewalls reportedly exposed and vulnerable.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 7.0.1-5111CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | ||
<= 7.0.1-5083CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | ||
<= 6.5.4.4-44v-21-1551CPE matchmatch criteria | cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* |
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
No social media mentions found for this CVE.
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.
Remediation records are not available for this CVE.