SonicOS firewalls
CVE-2024-40762: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in the SonicOS SSLVPN authentication to…
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in the SonicOS SSLVPN authentication token generator that, in certain cases, can be predicted by an attacker potentially resulting in authentication bypass.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 9.8
EPSS1.0%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 (Gen7 Hardware, Gen7 NSv, TZ80) 7.1 | See the advisory |
| SonicOS (Gen7 Hardware, Gen7 NSv, TZ80) 8.0 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in the SonicOS SSLVPN authentication token generator that, in certain cases, can be predicted by an attacker potentially resulting in authentication bypass.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.