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

Vulnerability from cvelistv5 – Published: 2026-09-01 21:25 – Updated: 2026-09-03 03:55
VLAI CISA Shadowserver 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: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 00:00 UTC
CWE
  • CWE-918 - Server-Side request forgery (SSRF)
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Assigner
sonicwall CNA under the mitre root
CNA scorecard D 54/100 over 34 records in the last 180 days details
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
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5dea1f19-5f91-49b2-9bec-105cb85a6a0c

Vulnerability ID: CVE-2026-83548

Status: Confirmed

Status Updated: 2026-11-12 00:00 UTC

Exploited: Yes

Characteristics
Severity: 100.0
Timestamps
First Seen: 2026-10-17
Asserted: 2026-10-17
Last Seen: 2026-11-12
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: SonicWall / SMA1000 | Class: firewall | Severity: Critical (CVSS 10) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-11-12: 38
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class firewall
7D Avg 0
Vendor SonicWall
30D Avg 0
90D Avg 0
Product SMA1000
Cisa Kev yes
Connections 38
Observation Date 2026-11-12
Vulnerability Class CVSS
Vulnerability Score 10
Vulnerability Severity Critical
References
Created: 2026-10-21 08:51 UTC | Updated: 2026-11-14 01:01 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: 0.08043 | Used in malware: unknown | Listed 21 hours ahead of CISA KEV | 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...
Cve Id CVE-2026-83548
Vendor SonicWall
Ghsa Id GHSA-GHW2-CFH2-XVGC
Product SMA1000
Added Date 2026-09-01T20:19:00.000Z
Cvss Score 10.0
Epss Score 0.08043
Previous Ids
Cvss Severity CRITICAL
Virtual Patch True
Cvss Estimated False
Epss Percentile 0.94795
Used In Malware unknown
Vulnerability Id CVE-2026-83548
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: 2026-11-04 13:01 UTC
Show details on NVD website
To clipboard 

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            {
              "descriptions": [
                {
                  "cweId": "CWE-441",
                  "description": "CWE-441 Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)",
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            "dateUpdated": "2026-09-01T21:25:45.368Z",
            "orgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
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              "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016"
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            "advisory": "SNWLID-2026-0016",
            "discovery": "INTERNAL"
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        "assignerShortName": "sonicwall",
        "cveId": "CVE-2026-83548",
        "datePublished": "2026-09-01T21:25:45.368Z",
        "dateReserved": "2026-08-31T18:15:31.466Z",
        "dateUpdated": "2026-09-03T03:55:31.337Z",
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  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.