SonicOS firewalls
CVE-2024-40765: Integer-based buffer overflow in SonicOS
An Integer-based buffer overflow vulnerability in the SonicOS via IPSec allows a remote attacker in specific conditions to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a specially crafted IKEv2 payload.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| SonicOS (Gen6 NSv, Gen7 Hardware, Gen7 NSv) 6.5 | See the advisory |
| SonicOS (Gen6 NSv, Gen7 Hardware, Gen7 NSv) 7.0 | See the advisory |
| SonicOS (Gen6 NSv, Gen7 Hardware, Gen7 NSv) 7.1 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An Integer-based buffer overflow vulnerability in the SonicOS via IPSec allows a remote attacker in specific conditions to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a specially crafted IKEv2 payload.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.