CVE-2026-83549: SonicWall SMA1000 Appliances OS Command Injection Vulnerability

Recommended actionMitigate now

CISA confirms exploitation in the wild and lists 2026-09-05 as the remediation due date.

Mitigation available

What, why and how

SonicWall SMA1000 Appliances contains an OS command injection vulnerability that could enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.

What

Why

Untrusted input is incorporated into an operating-system command without safe parameter handling.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

Why

Untrusted input is incorporated into an operating-system command without safe parameter handling.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2026-09-02.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') → execute code or commands in the affected security context
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-78 ↗
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'). The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.

Remote code executionCWE-78CISA KEV

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-69707Known-exploited evidence recorded

Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.

Official EUVD record ↗

BSI · German · WID-SEC-2026-3135SonicWall SMA: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in SonicWall SMA ausnutzen, um Sicherheitsvorkehrungen zu umgehen und Code mit Administratorrechten auszuführen.

Official advisory ↗

Canadian Centre for Cyber Security · English · AV26-872SonicWall security advisory (AV26-872) – Update 1

As of September 1, 2026, SonicWall is affected by a vulnerability in the following product: SonicWall indicates that CVE-2026-83548 and CVE-2026-83549 are being exploited.

Official advisory ↗

INCIBE-CERT · Spanish · multiples-vulnerabilidades-en-productos-de-sonicwallMúltiples vulnerabilidades en productos de SonicWall

SonicWall ha publicado 2 vulnerabilidades de severidad crítica que, en caso de ser explotadas, podrían permitir a un atacante obtener acceso no autorizado a funciones sensibles o la ejecución remota de código.

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1103Multiples vulnérabilités dans les produits SonicWall

De multiples vulnérabilités ont été découvertes dans les produits SonicWall. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance et une falsification de requêtes côté serveur (SSRF). L'éditeur indique que les vulnérabilités CVE-2026-83548 et CVE-2026-83549 sont activement exploités.

Official advisory ↗

NBSZ-NKI · Hungarian · cve-2026-83549CVE-2026-83549

Magas

Official advisory ↗

CSIRT Italia · Italian · sonicwall-rilevato-sfruttamento-in-rete-delle-cve-2026-83548-e-cve-2026-83549SonicWall: rilevato sfruttamento in rete delle CVE-2026-83548 e CVE-2026-83549

La vulnerabilità identificata tramite la CVE-2026-83548, di tipo " Server-Side request forgery (SSRF) ", e con score CVSS pari a 10, interessa l'interfaccia Work Place dell'appliance SonicWall SMA1000 Series. Tale vulnerabilità è dovuta alla presenza di un percorso di accesso alternativo non previsto che può consentire al dispositivo di operare come proxy indesiderato. Un attaccante remoto non autenticato potrebbe sfruttare tale vulnerabilità inviando richieste opportunamente predisposte ai sistemi interessati al fine di ottenere l'accesso a funzionalità riservate ed l'esecuzione di operazioni non autorizzate. La vulnerabilità identificata tramite la CVE-2026-83549, di tipo " OS command injection ", e con score CVSS pari a 7.8, interessa la console di gestione (AMC) dell'appliance SonicWall SMA1000 Series. Tale vulnerabilità è dovuta a meccanismi di sicurezza non adeguati dei parametri forniti in input. La vulnerabilità, qualora sfruttata, potrebbe consentire ad un attaccante remoto, autenticato con privilegi amministrativi, di eseguire codice arbitrario sui sistemi interessati.

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2026-031608SonicWALLのSMA6210 ファームウェア等の複数製品におけるOS コマンドインジェクションの脆弱性

認証後に特別な要素の不適切な無害化が行われるOSコマンドインジェクションの脆弱性が、SMA1000アプライアンス管理コンソール（AMC）で確認されました。特定の条件下において、リモートの認証済み管理者権限を持つ攻撃者が任意のOSコマンドを実行できる可能性があり、その結果としてリモートコード実行が発生する恐れがあります。

Official advisory ↗

KISA KrCERT/CC · Korean · KNVD-6941美 CISA 발표 주요 Exploit 정보공유(Update. 2026-09-02)

SonicWall SMA1000 Appliances OS Command Injection Vulnerability

Official advisory ↗

NCSC-NL · Dutch · NCSC-2026-0337Zero-Day kwetsbaarheden verholpen in SMA1000 Appliance van SonicWall

Critical vulnerabilities in the SMA1000 Appliance include a pre-authentication SSRF and a post-authentication OS Command Injection, enabling remote code execution by unauthenticated and authenticated attackers respectively.

Official advisory ↗

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Mitigation available
Affected: SMA1000: 12.4.3-03453 (platform-hotfix) and older versions, 12.5.0-02835 (platform-hotfix) and older versions
Fixed: No fixed version is explicitly recorded in the structured CVE data.
Action: The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 1 Sept 2026 · Last source change 21 Sept 2026, 13:07 UTC · CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVE recordCVE.org · 5.2

CVSS sourceCISA ADP

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-09-02

European sourceENISA EUVD · EUVD-2026-69707

Product sourceCISA KEV

Remediation sourceCVE/CNA references

CWE sourceCNA

NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

21 Sep 2026, 13:07 UTC
Vendor guidanceAuthoritative vendor guidance changed: removed remediation: cyber.gc.ca/sonicwall-security-advisory-av26-872.
Before
remediation: cyber.gc.ca/sonicwall-security-advisory-av26-872 · vendor advisory: psirt.global.sonicwall.com/SNWLID-2026-0016
After
vendor advisory: psirt.global.sonicwall.com/SNWLID-2026-0016
PSIRT@sonicwall.com ↗
21 Sep 2026, 13:07 UTC
Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
Before
Mitigation available
After
Awaiting fix
PSIRT@sonicwall.com ↗
3 Sep 2026, 03:55 UTC
Vendor guidanceAuthoritative vendor guidance changed: removed remediation: cyber.gc.ca/sonicwall-security-advisory-av26-872.
Before
remediation: cyber.gc.ca/sonicwall-security-advisory-av26-872 · vendor advisory: psirt.global.sonicwall.com/SNWLID-2026-0016
After
vendor advisory: psirt.global.sonicwall.com/SNWLID-2026-0016
PSIRT@sonicwall.com ↗
3 Sep 2026, 03:55 UTC
Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
Before
Mitigation available
After
Awaiting fix
PSIRT@sonicwall.com ↗
3 Sep 2026, 03:55 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
12.4.3-03453 (platform-hotfix) and older versions; 12.5.0-02835 (platform-hotfix) and older versions · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
SMA1000: 12.4.3-03453 (platform-hotfix) and older versions, 12.5.0-02835 (platform-hotfix) and older versions · Fixed: No fixed version is explicitly recorded in the structured CVE data.
CNA ↗
2 Sep 2026, 20:04 UTC
ENISA known-exploited stateENISA EUVD now records this CVE in its known-exploited dataset.
Before
not listed in ENISA EUVD known-exploited dataset
After
listed in ENISA EUVD known-exploited dataset (EUVD-2026-69707)
ENISA EUVD ↗
2 Sep 2026, 19:58 UTC
Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: psirt.global.sonicwall.com/SNWLID-2026-0016.
Before
no authoritative guidance recorded
After
vendor advisory: psirt.global.sonicwall.com/SNWLID-2026-0016
PSIRT@sonicwall.com ↗
2 Sep 2026, 18:44 UTC
Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
Before
Awaiting fix
After
Mitigation available
Canadian Centre for Cyber Security ↗
2 Sep 2026, 11:05 UTC
BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.
Before
no BlackTree article
After
1 BlackTree article
BlackTree editorial ↗
2 Sep 2026, 03:55 UTC
CISA KEV stateCISA KEV now confirms exploitation in the wild.
Before
not listed in CISA KEV
After
listed in CISA KEV since 2026-09-02
CISA KEV ↗
1 Sep 2026, 23:21 UTC
ENISA EUVD mappingEUVD-2026-69707 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2026-69707"}
ENISA EUVD ↗
1 Sep 2026, 22:02 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2026-09-01CVE published

2026-09-02Added to CISA KEV

2026-09-02Remediation guidance recorded

ENISA EUVD · EUVD-2026-69707↗Canadian Centre for Cyber Security remediation guidance↗CISA KEV record↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

SonicWall SMA1000 Appliances OS Command Injection Vulnerability

Published severity in operational context

Evidence used

Compensating controls

Verification

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2026-69707

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication