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CVE-2026-3439

MEDIUM CVSS 3.1: 4.9 EPSS 0.14%
Updated Mar 05, 2026
Sonicwall
Parameter Value
CVSS 4.9 (MEDIUM)
Affected Versions before 8.2.0-8009
Fixed In 7.3.2-7010
Type CWE-121 (Stack-based Buffer Overflow)
Vendor Sonicwall
Public PoC No

A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote attacker to crash a firewall.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 34

Configuration From (including) Up to (excluding)
Sonicwall Sonicos
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
7.3.2-7010
Sonicwall Nsa_2700
cpe:2.3:h:sonicwall:nsa_2700:-:*:*:*:*:*:*:*
Sonicwall Nsa_3700
cpe:2.3:h:sonicwall:nsa_3700:-:*:*:*:*:*:*:*
Sonicwall Nsa_4700
cpe:2.3:h:sonicwall:nsa_4700:-:*:*:*:*:*:*:*
Sonicwall Nsa_5700
cpe:2.3:h:sonicwall:nsa_5700:-:*:*:*:*:*:*:*
Sonicwall Nsa_6700
cpe:2.3:h:sonicwall:nsa_6700:-:*:*:*:*:*:*:*
Sonicwall Nssp_10700
cpe:2.3:h:sonicwall:nssp_10700:-:*:*:*:*:*:*:*
Sonicwall Nssp_11700
cpe:2.3:h:sonicwall:nssp_11700:-:*:*:*:*:*:*:*
Sonicwall Nssp_13700
cpe:2.3:h:sonicwall:nssp_13700:-:*:*:*:*:*:*:*
Sonicwall Nssp_15700
cpe:2.3:h:sonicwall:nssp_15700:-:*:*:*:*:*:*:*
Sonicwall Nsv270
cpe:2.3:h:sonicwall:nsv270:-:*:*:*:*:*:*:*
Sonicwall Nsv470
cpe:2.3:h:sonicwall:nsv470:-:*:*:*:*:*:*:*
Sonicwall Nsv870
cpe:2.3:h:sonicwall:nsv870:-:*:*:*:*:*:*:*
Sonicwall Tz270
cpe:2.3:h:sonicwall:tz270:-:*:*:*:*:*:*:*
Sonicwall Tz270w
cpe:2.3:h:sonicwall:tz270w:-:*:*:*:*:*:*:*
Sonicwall Tz370
cpe:2.3:h:sonicwall:tz370:-:*:*:*:*:*:*:*
Sonicwall Tz370w
cpe:2.3:h:sonicwall:tz370w:-:*:*:*:*:*:*:*
Sonicwall Tz470
cpe:2.3:h:sonicwall:tz470:-:*:*:*:*:*:*:*
Sonicwall Tz470w
cpe:2.3:h:sonicwall:tz470w:-:*:*:*:*:*:*:*
Sonicwall Tz570
cpe:2.3:h:sonicwall:tz570:-:*:*:*:*:*:*:*
Sonicwall Tz570p
cpe:2.3:h:sonicwall:tz570p:-:*:*:*:*:*:*:*
Sonicwall Tz570w
cpe:2.3:h:sonicwall:tz570w:-:*:*:*:*:*:*:*
Sonicwall Tz670
cpe:2.3:h:sonicwall:tz670:-:*:*:*:*:*:*:*
Sonicwall Sonicos
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
8.2.0-8009
Sonicwall Nsa_2800
cpe:2.3:h:sonicwall:nsa_2800:-:*:*:*:*:*:*:*
Sonicwall Nsa_3800
cpe:2.3:h:sonicwall:nsa_3800:-:*:*:*:*:*:*:*
Sonicwall Nsa_4800
cpe:2.3:h:sonicwall:nsa_4800:-:*:*:*:*:*:*:*
Sonicwall Nsa_5800
cpe:2.3:h:sonicwall:nsa_5800:-:*:*:*:*:*:*:*
Sonicwall Tz280
cpe:2.3:h:sonicwall:tz280:-:*:*:*:*:*:*:*
Sonicwall Tz380
cpe:2.3:h:sonicwall:tz380:-:*:*:*:*:*:*:*
Sonicwall Tz480
cpe:2.3:h:sonicwall:tz480:-:*:*:*:*:*:*:*
Sonicwall Tz580
cpe:2.3:h:sonicwall:tz580:-:*:*:*:*:*:*:*
Sonicwall Tz680
cpe:2.3:h:sonicwall:tz680:-:*:*:*:*:*:*:*
Sonicwall Tz80
cpe:2.3:h:sonicwall:tz80:-:*:*:*:*:*:*:*