Is CVE-2026-83549 actively exploited?

Yes. Previdian tracks CVE-2026-83549 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has Previdian observed?

Previdian has not yet recorded sensor-observed exploitation attempts for CVE-2026-83549. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2026-83549 affects SonicWall SMA1000. Reported affected versions include 12.4.3-03453 (platform-hotfix) and older versions and 12.5.0-02835 (platform-hotfix) and older versions.

Yes. CVE-2026-83549 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Added to Previdian from a trusted third-party report 1 day before CISA listed it.

CVE-2026-83549 Exploited in the Wild — SMA1000

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-83549 is a vulnerability affecting SonicWall SMA1000. Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

SonicWall / SMA1000 12.4.3-03453 (platform-hotfix) and older versions.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

SMA1000 OS Command Injection

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.

Vendor Product Affected Status

SonicWall Affected

SMA1000

12.4.3-03453 (platform-hotfix) and older versions 12.5.0-02835 (platform-hotfix) and older versions

Affected

View vendor advisory

Published: 01 Sep 2026
Exploitation Reported: 01 Sep 2026
Attack vector: Local
Complexity: Low
Privileges: Low
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2026-83549
Vendor Advisory — psirt.global.sonicwall.com psirt.global.sonicwall.com · Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

Sonicwall PSIRT

Recorded 01 Sep 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access

Source	Added
Sonicwall PSIRT First	2026-09-01 20:21 UTC
Rapid7	2026-09-02 16:58 UTC
CISA	2026-09-02 17:31 UTC
CVE	2026-09-02 18:03 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts: 0; 0; 0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

7.8 High

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

9.9%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-78

Recent mention · The Hacker News

07 Oct 2026

SonicWall Patches CVSS 10.0 Pre-Authentication SSRF Flaw in SMA1000 Appliances

Swati KhandelwalOct 07, 2026Vulnerability / Network Security SonicWall has released hotfixes for four flaws in its SMA1000 appliances, the gateways that give remote workers access to a company's network and applications. The most serious could allow an attacker without a...

Read full advisory

All CVSS Scores

CVSS v3.1 7.8 High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0 7.8 High

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

All Mentions

Recent mention · The Hacker News

SonicWall Patches CVSS 10.0 Pre-Authentication SSRF Flaw in SMA1000 Appliances

The Hacker News · 07 Oct 2026

Swati KhandelwalOct 07, 2026Vulnerability / Network Security SonicWall has released hotfixes for four flaws in its SMA1000 appliances, the gateways that give remote workers access to a company's network and applications. The most serious could allow an attacker without a login to send requests through the appliance and reach internal functions. SonicWall rates it 10.0 on the CVSS scale and says it has no evidence that any of the four flaws is being used in attacks. The most serious flaw, tracked as CVE-2026-102255, is a server-side request forgery (SSRF) bug in WorkPlace, the portal that...

Recent mention · Rapid7

Metasploit Wrap Up: This One Goes to Sixteen!

Rapid7 · 11 Sep 2026

This One Goes to Sixteen!Another banger from Metasploit with sixteen new modules, including ten exploit modules, with five on the CISA KEV list. Cisco, Papercut, Sonicwall, Jetbrains, and Langflow all have exploit modules, and not to be outdone, we even have a Metasploit scanner to watch the watchers!New module content (16)Elasticsearch ingest-attachment Apache Tika XFA XXE Local File ReadAuthors: Bourbon Offensive Security Services and Jean-Marie BourbonType: AuxiliaryPull request: #21739 contributed by kmkzPath: scanner/http/elasticsearch_tika_xfa_xxeCVE...

Recent mention · Rapid7

Critical SonicWall SMA1000 Vulnerabilities CVE-2026-83548, CVE-2026-83549 Exploited in the Wild

Rapid7 · 02 Sep 2026

OverviewOn September 1, 2026, SonicWall disclosed two vulnerabilities affecting SonicWall SMA1000 appliances that the vendor says are being actively exploited in the wild. The vulnerabilities, CVE-2026-83548 and CVE-2026-83549, can be chained to achieve unauthenticated remote code execution (RCE) on affected appliances.CVE-2026-83548 is a critical pre-authentication server-side request forgery (SSRF) vulnerability in the SMA1000 Appliance Work Place interface. The flaw has a CVSS v3.1 base score of 10.0 and can allow a remote, unauthenticated attacker to access sensitive functionality and...

Recent mention · TheRegister

SonicWall's SMA1000 boxes under active attack again

TheRegister · 02 Sep 2026

Miscreants use chained zero days to pwn boxen as third-party SOCs say further attacks 'almost certain'

Recent mention · Sonicwall PSIRT

SonicWall SMA1000 Series Appliances Affected By Multiple Vulnerabilities

Sonicwall PSIRT · 01 Sep 2026

1) CVE-2026-83548 - Pre-authentication SSRF via unintended forward-proxy A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive functionality and perform unauthorized operations.. CVSS Score: 10.0 CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CWE-918: Server-Side Request Forgery (SSRF) CWE-441: Unintended Proxy or Intermediary ('Confused Deputy') 2) CVE-2026-83549 -...

Timeline

From disclosure to observed exploitation

02 Sep 2026
18:03 UTC

KEV confirmed by CVE

Exploitation attested by an external source
02 Sep 2026
17:31 UTC

Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
02 Sep 2026
16:58 UTC

KEV confirmed by Rapid7

Exploitation attested by an external source
01 Sep 2026
21:28 UTC

CVE published

Vulnerability disclosed publicly
01 Sep 2026
20:21 UTC

Added to Previdian KEV Feed

High-confidence, third-party attested exploitation
31 Aug 2026
18:15 UTC

CVE ID reserved

Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

Start 14-day Pro trial Read API docs

Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2026-83549

Sample API response

{
  "cve_id": "CVE-2026-83549",
  "confidence": "Confirmed",
  "cvss_score": 7.8,
  "cvss_estimated": false,
  "epss_score": 0.09889,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

CVE-2026-83549

SMA1000 OS Command Injection

Tags

CVE References

Exploited in the wild

Known exploited vulnerability sources

Observed signals

Scanner coverage

Virtual patch status

Weaknesses

SonicWall Patches CVSS 10.0 Pre-Authentication SSRF Flaw in SMA1000 Appliances

All CVSS Scores

All Mentions

KEV confirmed by CVE

Added to CISA KEV

KEV confirmed by Rapid7

CVE published

Added to Previdian KEV Feed

CVE ID reserved

Automate this intelligence