All vulnerabilities

Servers and applications

CVE-2023-0656

A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

Severity
High 7.5
Published
2 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
SonicWall SonicOSServers and applications · cpe:o:sonicwall:sonicos
  • Every version up to 7.0.1-5111
  • Every version up to 7.0.1-5083
  • Every version up to 6.5.4.4-44v-21-1551

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-0656
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-0656