CVE-2026-3439

MEDIUM

4.9

Description

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

CVE Details

CVSS v3.1 Score4.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published3/4/2026

Last Modified3/5/2026

Sourcenvd

Honeypot Sightings0

Affected Products

sonicwall:nsa_2700sonicwall:nsa_2800sonicwall:nsa_3700sonicwall:nsa_3800sonicwall:nsa_4700sonicwall:nsa_4800sonicwall:nsa_5700sonicwall:nsa_5800sonicwall:nsa_6700sonicwall:nssp_10700sonicwall:nssp_11700sonicwall:nssp_13700sonicwall:nssp_15700sonicwall:nsv270sonicwall:nsv470sonicwall:nsv870sonicwall:sonicossonicwall:tz270sonicwall:tz270wsonicwall:tz280sonicwall:tz370sonicwall:tz370wsonicwall:tz380sonicwall:tz470sonicwall:tz470wsonicwall:tz480sonicwall:tz570sonicwall:tz570psonicwall:tz570wsonicwall:tz580sonicwall:tz670sonicwall:tz680sonicwall:tz80

Weaknesses (CWE)

CWE-121

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001(PSIRT@sonicwall.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.