CVE-2026-83549 (GCVE-0-2026-83549)

Vulnerability from cvelistv5 – Published: 2026-09-01 21:28 – Updated: 2026-09-02 03:55
VLAI CISA Previdian
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 00:00 UTC
CWE
  • CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
SonicWall SMA1000 Affected: 12.4.3-03453 (platform-hotfix) and older versions
Affected: 12.5.0-02835 (platform-hotfix) and older versions
guessed Create a notification for this product.
Date Public
2026-09-01 21:26
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 106b930f-4683-4444-9294-4ecc2e72b435

Vulnerability ID: CVE-2026-83549

Status: Confirmed

Status Updated: 2026-09-02 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-02
Asserted: 2026-09-02
Scope
Notes: SonicWall SMA1000 Appliances OS Command Injection Vulnerability | Affected: SonicWall / SMA1000 Appliances | Description: 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. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-09-05 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-83549
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-78
Feed CISA Known Exploited Vulnerabilities Catalog
Product SMA1000 Appliances
Due Date 2026-09-05
Date Added 2026-09-02
Vendorproject SonicWall
Vulnerabilityname SonicWall SMA1000 Appliances OS Command Injection Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-09-02 18:00 UTC | Updated: 2026-09-02 18:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 6701a3fe-0836-46a0-9862-641aaddec085

Vulnerability ID: CVE-2026-83549

Status: Confirmed

Status Updated: 2026-09-01 20:21 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-01
Asserted: 2026-09-01
Scope
Notes: Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in... | Affected: SonicWall / SMA1000 | CVSS: 7.8 (HIGH) | EPSS: 0.00917 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in...
Vendor SonicWall
Product SMA1000
Added Date 2026-09-01T20:21:00.000Z
Cvss Score 7.8
Epss Score 0.00917
Cvss Severity HIGH
Epss Percentile 0.57798
Used In Malware unknown
Ahead Of Cisa Kev 
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  "unit": "hour"
}
Not Yet In Cisa Kev False
References
Created: 2026-09-02 21:00 UTC | Updated: 2026-09-02 21:00 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.