Findings

CVE-2026-3439

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

Published Mar 4, 2026 · updated Jun 17, 2026 · sonicwall sonicos

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

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 4, 2026 · NIST NVD

    Detected

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

  2. Jun 17, 2026 · NIST NVD

    Updated

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

Affected

  • cpe sonicwall/sonicosversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-3439

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-3439

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

    nvd.nist.gov

References