SonicOS firewalls
CVE-2024-12803: Post-authentication stack-based buffer overflow in SonicOS
A post-authentication stack-based buffer overflow vulnerability in SonicOS management allows a remote attacker to crash a firewall and potentially leads to code execution.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.2
EPSS0.80%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory
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 Hardware, Gen7 Hardware, Gen7 NSv, TZ80) 6.5 | See the advisory |
| SonicOS (Gen6 Hardware, Gen7 Hardware, Gen7 NSv, TZ80) 7.0 | See the advisory |
| SonicOS (Gen6 Hardware, Gen7 Hardware, Gen7 NSv, TZ80) 7.1 | See the advisory |
| SonicOS (Gen6 Hardware, Gen7 Hardware, Gen7 NSv, TZ80) 8.0 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A post-authentication stack-based buffer overflow vulnerability in SonicOS management allows a remote attacker to crash a firewall and potentially leads to code execution.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.