CVE-2026-83548 (GCVE-0-2026-83548)

Vulnerability from cvelistv5 – Published: 2026-09-01 21:25 – Updated: 2026-09-02 13:12
VLAI CISA Previdian
Summary
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.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 03:56 UTC
CWE
  • CWE-918 - Server-Side request forgery (SSRF)
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
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 21:17
Credits
Adam Babis of SonicWall PSIRT
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 300a00f0-a093-48eb-a8c6-db9f1e6680bf

Vulnerability ID: CVE-2026-83548

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 Server-Side Request Forgery Vulnerability | Affected: SonicWall / SMA1000 Appliances | Description: SonicWall SMA1000 Appliances contains a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to gain unauthorized access to sensitive functionality and perform unauthorized operations. | 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-2026-83548
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-918 CWE-441
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 Server-Side Request Forgery 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: eac69f1f-e80f-47d4-8cd2-0b7faaf47fdf

Vulnerability ID: CVE-2026-83548

Status: Confirmed

Status Updated: 2026-09-01 20:19 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-01
Asserted: 2026-09-01
Scope
Notes: A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote... | Affected: SonicWall / SMA1000 | CVSS: 10.0 (CRITICAL) | EPSS: 0.00266 | 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 A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote...
Vendor SonicWall
Product SMA1000
Added Date 2026-09-01T20:19:00.000Z
Cvss Score 10.0
Epss Score 0.00266
Cvss Severity CRITICAL
Epss Percentile 0.18174
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.