SonicOS firewalls
CVE-2023-39279: SonicOS post-authentication Stack-Based Buffer Overflow in SonicOS
SonicOS post-authentication Stack-Based Buffer Overflow vulnerability in the getPacketReplayData.json URL endpoint leads to a firewall crash.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityUnknown
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 7.0 | See the advisory |
| SonicOS 6.5 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
SonicOS post-authentication Stack-Based Buffer Overflow vulnerability in the getPacketReplayData.json URL endpoint leads to a firewall crash.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.