SonicOS: restore access controls

Published · Updated · Digital strategy · 6 min read · By Cyber Intelligence Embassy

At a glance

SonicOS: security control bypass. This 2026-08-06 case examines 8 version entries and 1 CVEs, documented releases and checks suited to network access, using CERTFR-2026-AVI-0972.

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In this article

Retrospective for 2026-08-06, compiled on 27 October 2026. The date identifies the day being analysed; source publication and revision dates are recorded below.

What this advisory changes in your environment

The starting point is CERTFR-2026-AVI-0972, published on 2026-08-06. Its scope includes SonicOS, Gen7 NSv NSv 270, NSv 470 et NSv 870, Gen7 NSv NSV270, NSv470, NSv870 (ESX, KVM, HYPER-V, AWS, Azure), Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800. Reported consequences are security control bypass. These statements apply to the advisory’s scope; they do not assign every consequence to every product or CVE.

This case contains 8 version entries; CVE identifier count: 1. Track remediation by component: a successful overall update does not demonstrate that SonicOS and Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800 each received their respective fix.

Products and versions to examine

Reference
CERTFR-2026-AVI-0972
Source first published
2026-08-06
Latest source revision available for this day
2026-08-06
Named components
SonicOS, Gen7 NSv NSv 270, NSv 470 et NSv 870, Gen7 NSv NSV270, NSv470, NSv870 (ESX, KVM, HYPER-V, AWS, Azure), Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800
CVE identifiers
CVE-2026-0516
ComponentPublished condition
Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800< 8.2.2-8015

For Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800, the published condition is “< 8.2.2-8015”. Compare the version actually loaded with that condition within its own release branch. A fix installed on another edition of SonicOS does not close this case.

Mechanism and prerequisites

A security bypass challenges a trust boundary. Verify server-side authorisation decisions and alternative paths; hiding an interface is not an access restriction.

The primary record CVE-2026-0516, published by sonicwall, covers SonicOS. The retained revision is dated 2026-08-05. Its scope is presented separately from the integrations and product groupings in CERTFR-2026-AVI-0972.

Choose the appropriate intervention

  1. Locate Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800 instances, running releases and service owners. Record condition < 8.2.2-8015 in the ticket alongside reference CERTFR-2026-AVI-0972.
  2. Compare the installed branch with the vendor’s Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800 release notes. Prepare the package for that branch and a dependent-service test, retaining the pre-change state.
  3. After changing Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800, capture the loaded version again and verify the workflow below. Any exception needs an owner, an exposure-reduction measure and an expiry date.

Verify the fix in a real workflow

Validation scenario to adapt for SonicOS: For Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800, test an authorised business flow from each zone reaching the service and confirm management restrictions. If a redundant pair exists, verify both nodes and rule persistence after failover during a planned maintenance window. This is a proposed defensive check, not a claim that testing was performed against third-party systems.

Limit of case CERTFR-2026-AVI-0972: this analysis replaces neither vendor prerequisites nor investigation of your logs. Only documented versions are reproduced; no attack date or victim is invented.

Questions specific to this case

Which condition should be checked for Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800?

Advisory CERTFR-2026-AVI-0972 states: Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800 — < 8.2.2-8015. Check the edition and running release; do not extend the published boundary to branches absent from the advisory.

Why not use one fix for SonicOS and Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800?

CERTFR-2026-AVI-0972 distinguishes these components within a scope containing 8 entries. Match each branch to its own update documentation and functional check.

What is still needed to assess SonicOS exposure?

For SonicOS, establish the running version, the path to the component and process permissions. The sources retained for CERTFR-2026-AVI-0972 do not establish every prerequisite or active exploitation.

Sources and related reading

Practical guide : Software inventory: prepare for end of support

Explore the decision addressed in this case

Complete source advisory inventory

The article table may be an extract. These lists contain every affected-system entry and CVE in the specified advisory revision. They are not an inventory of your assets and do not map every CVE to every product.

Official source · CERTFR-2026-AVI-0972
Advisory revision : · Checked on :

Affected systems · 8

Original French wording is retained to avoid ambiguous translations of version conditions.

  1. Gen7 Firewalls TZ270, TZ270W, TZ370, TZ370W, TZ470, TZ470W, TZ570, TZ570W, TZ570P, TZ670, NSa 2700, NSa 3700,NSa 4700, NSa 5700, NSa 6700, NSsp 10700, NSsp 11700, NSsp 13700 et NSsp 15700 versions 7.0.1-5169 et antérieures
  2. Gen7 NSv NSv 270, NSv 470 et NSv 870 versions 7.3.3-7015 et antérieures
  3. Gen7 Firewalls TZ270, TZ270W, TZ370, TZ370W, TZ470, TZ470W, TZ570, TZ570W, TZ570P, TZ670, NSa 2700, NSa 3700,NSa 4700, NSa 5700, NSa 6700, NSsp 10700, NSsp 11700, NSsp 13700 et NSsp 15700 versions 7.3.3-7015 et antérieures
  4. Gen7 NSv NSV270, NSv470, NSv870 (ESX, KVM, HYPER-V, AWS, Azure) versions 7.0.1-5169 et antérieures
  5. Gen7 NSv NSV270, NSv470, NSv870 (ESX, KVM, HYPER-V, AWS, Azure) versions 7.3.3-7015 et antérieures
  6. Gen6 Hardware Firewalls SOHOW, TZ 300, TZ 300W, TZ 400, TZ 400W, TZ 500, TZ 500W, TZ 600, NSA 2650, NSA 3600, NSA 3650, NSA 4600, NSA 4650, NSA 5600, NSA 5650, NSA 6600, NSA 6650, SM 9200, SM 9250, SM 9400, SM 9450, SM 9600, SM 9650, TZ 300P, TZ 600P, SOHO 250, SOHO 250W, TZ 350 et TZ 350W versions 6.5.5.2-28n et antérieures
  7. Gen7 NSv NSv 270, NSv 470 et NSv 870 versions 7.0.1-5169 et antérieures
  8. Gen8 Firewalls TZ80, TZ280, TZ280W, TZ380, TZ380W, TZ480, TZ580, TZ680, NSa 2800, NSa 3800, NSa 4800 et NSa 5800 versions antérieures à 8.2.2-8015

Historical note from this revision: check current patch availability with the vendor before acting.

Seules les Gen8 disposent d'un correctif. Pour les autres versions, l'éditeur propose une mesure de contournement. Un correctif est prévu à une date ultérieure pour les Gen 7.

CVE identifiers · 1