PT-2026-21748 · Sonicwall · Sonicos

N3Vv + 1 · Published 2026-02-24 · Updated 2026-02-25 · CVE-2026-0402

Positive Technologies (AI Summary)

CVSS v3.1

4.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions SonicOS (affected versions not specified)

Description A post-authentication Out-of-bounds Read issue exists in SonicOS. This can allow a remote attacker to cause a firewall to crash.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-0402

Affected Products

Sonicos

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-0402 · Security Note
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-0402 · Vendor Advisory
• https://twitter.com/CVEnew/status/2026676464125637055 · Twitter Post