AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

SonicWallCVE-2026-66154

SonicWall GMS: improper certificate validation

SonicWall

CVE-2026-66154 · Published Aug 11, 2026 · updated Aug 28, 2026

High8.3
No fix yet
SonicWall advisory

An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes.

Affected versions

PackageAffectedFixed in
GMS
Product
<= 9.5.1 and earlier versionsNo fix yet
Details and references
CVSS 3.1
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity from
CISA (its enrichment of the CVE record)
Weakness
CWE-295

More SonicWall advisories

All SonicWall
Critical 9.4Aug 11SonicWall GMS: command injectionCVE-2026-66147no fix yetMedium 6.3Aug 11SonicWall GMS: command injectionCVE-2026-66148no fix yetHigh 7.8Aug 11SonicWall Email Security: code injectionCVE-2026-66149no fix yetHigh 7.8Aug 11SonicWall Email Security: code injectionCVE-2026-66150no fix yetHigh 8.4Aug 11SonicWall GMS: unsafe deserializationCVE-2026-18634no fix yetCritical 9.1Aug 11SonicWall GMS: remote code executionCVE-2026-66145no fix yet