KEV Intelligence

Vulnerability report

Active exploitation observed Confirmed confidence In CISA KEV

CVE-2026-15409

SMA1000 Server-Side Request Forgery

SonicWall / SMA1000 · 12.4.3-03245 to <= 12.4.3-03434

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Severity
CVSS 10.0 · Critical
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
74.2%
First observed
17 Jul 2026
Last observed
17 Aug 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-15409 is an unauthenticated vulnerability affecting SonicWall SMA1000. A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A remote...

Is it exploited?

Yes. KEV Intelligence sensors observed exploitation attempts with confirmed confidence.

Who is affected?

SonicWall / SMA1000 12.4.3-03245 to <= 12.4.3-03434.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface

A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface.

A remote unauthenticated attacker could potentially cause the appliance to make requests to unintended location.

Vendor Product Affected Status
SonicWall SMA1000 Through 12.4.3-03434 Affected
SonicWall SMA1000 Through 12.5.0-02800 Affected
View vendor advisory (opens in new tab)
Published
14 Jul 2026
Exploitation Reported
14 Jul 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

edge cisa nuclei_scanner

CVE References

Exploitation evidence

Why KEV Intelligence 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 14 Jul 2026

Independent exploitation attestation added to the KEV Intelligence record.

Active exploitation observed

KEV Intelligence sensor

First observed 17 Jul 2026

First-party sensor telemetry confirms matching exploitation attempts.

Proof of concept available

GitHub

Recorded 15 Jul 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

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

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Source Added
Sonicwall PSIRT First 2026-07-14 18:18 UTC
CISA 2026-07-14 19:00 UTC
CVE 2026-07-14 20:31 UTC
All CISA Advisories 2026-07-14 21:20 UTC
Daily CyberSecurity 2026-07-15 00:00 UTC
TheHackerNews 2026-07-15 05:30 UTC
Rapid7 2026-07-15 16:19 UTC
Tenable Blog 2026-07-15 17:14 UTC
KEV Intelligence 2026-07-17 15:20 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Aggregate observations show the scale, recency, and distribution of activity without overstating sparse data.

441

Attempts observed

46

Unique attacker IPs

18

Attacker countries

BE · CA · CH · CN · CZ · DE · FR · ID · IS · JP · LT · NL · PA · PL · SE · SG · SI · US

15

Sensors observed

Exploitation attempts over the last 35 days

Daily events observed by KEV Intelligence sensors

Updated 19 Aug 2026

0
2
20
12
26
10
42
6
21
2
12
5
11
24
20
108
111
1
0
12
12
4
12
1
0
0
0
1
0
0
0
2
2
0
0
16 Jul 23 Jul 30 Jul 6 Aug 19 Aug

First observed 17 Jul 2026 · Last observed 17 Aug 2026

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Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
311
User-Agents
9

Raw values available in Pro and Enterprise.

Virtual patch status

KEV Intelligence virtual patch guidance is available for this CVE.

AWS WAF Cloudflare ModSecurity

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

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Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-15409.yaml 22 Jul 2026

Virtual Patch Detail

Compensating WAF rules for this CVE.

Available

Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEV Intelligence Enterprise users.

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Risk and context

Severity, weaknesses, and research context

CVSS v3.1

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

EPSS

74.2%

Weaknesses

Server-Side Request Forgery (SSRF) CWE-918

Recent mention · Rapid7

Metasploit Wrap Up: Lot of summer shells and fit http profiles

This wrap-up brings a full-on shell parade. Thirteen shiny new modules landed, starting with a buffet of RCEs. WordPress WP2Shell, Ghost CMS, Joomla JCE, Langflow, OpenCATS, Pterodactyl Panel, SonicWall SMA1000, Ray Dashboard, a Pix-for-WooCommerce, and for those who like...

Read full advisory

All CVSS Scores

CVSS v3.1 10.0 Critical

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

CVSS v3.0 10.0 Critical

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

All Mentions

Recent mention · Rapid7

Metasploit Wrap Up: Lot of summer shells and fit http profiles

Rapid7 · 14 Aug 2026

This wrap-up brings a full-on shell parade. Thirteen shiny new modules landed, starting with a buffet of RCEs. WordPress WP2Shell, Ghost CMS, Joomla JCE, Langflow, OpenCATS, Pterodactyl Panel, SonicWall SMA1000, Ray Dashboard, a Pix-for-WooCommerce, and for those who like their exploits closer to the bare-metal, the Fragnesia Linux kernel LPE (CVE-2026-46300). Metasploit also got the glow-up of the summer with the new http malleable profiles, MCP functionality and linux multi fetch payloads (more details on the [official 6.5 release blog...

Recent mention · Daily CyberSecurity

SonicWall SMA1000 CVE-2026-15409 (CVSS 10.0) RCE Exploited in the Wild as Public PoC Drops

Daily CyberSecurity · 16 Jul 2026

TL;DR SonicWall patched a critical SonicWall SMA1000 vulnerability, CVE-2026-15409, on July 14, 2026. Attackers are exploiting it in The post SonicWall SMA1000 CVE-2026-15409 (CVSS 10.0) RCE Exploited in the Wild as Public PoC Drops appeared first on Daily CyberSecurity.

Recent mention · Tenable Blog

CVE-2026-15409, CVE-2026-15410: SonicWall SMA 1000 zero-day vulnerabilities exploited in the wild

Tenable Blog · 15 Jul 2026

SonicWall patched two recently exploited zero-day vulnerabilities in its SMA 1000 Series secure remote access appliances which may have been chained for unauthenticated remote code execution.Key takeawaysCVE-2026-15409 and CVE-2026-15410 are a pair of exploited vulnerabilities that may have been chained together to allow for code execution on SonicWall SMA1000 series appliances. Zero-day exploitation of these vulnerabilities has been observed and confirmed by SonicWall. Patches and indicators of compromise are available and urgent patching is recommended.BackgroundSonicWall's Secure Mobile...

Recent mention · Rapid7

Rapid7 MDR Team Discovers New SonicWall SMA1000 Zero Days being Actively Exploited (CVE-2026-15409, CVE-2026-15410)

Rapid7 · 15 Jul 2026

OverviewOn July 14, 2026, SonicWall published a security advisory addressing two vulnerabilities affecting SMA1000 Series remote access appliances, including the critical server-side request forgery (SSRF) vulnerability CVE-2026-15409 (CVSS 10.0) and the high-severity code injection vulnerability CVE-2026-15410. The advisory urges customers to immediately apply the latest platform hotfix releases.Successful exploitation of CVE-2026-15409 permits an unauthenticated attacker to open a websocket-based tunnel to arbitrary localhost-only services, while CVE-2026-15410 is a local privilege...

Recent mention · TheHackerNews

Two SonicWall SMA 1000 Zero-Days Exploited, One Could Enable Admin Commands

TheHackerNews · 15 Jul 2026

SonicWall has warned of active exploitation of two zero-day vulnerabilities impacting Secure Mobile Access (SMA) 1000 series appliances, one of which could be exploited to achieve arbitrary command execution. The vulnerabilities are listed below - CVE-2026-15409 (CVSS score: 10.0) - A Server-side request forgery (SSRF) vulnerability that a remote unauthenticated attacker could exploit to

Recent mention · Daily CyberSecurity

CVE-2026-15409: SonicWall SMA1000 SSRF Vulnerability (CVSS 10.0) Exploited in the Wild

Daily CyberSecurity · 15 Jul 2026

TL;DR SonicWall has released hotfixes for two actively exploited flaws in SMA1000 secure access appliances. The SonicWall SMA1000 The post CVE-2026-15409: SonicWall SMA1000 SSRF Vulnerability (CVSS 10.0) Exploited in the Wild appeared first on Daily CyberSecurity.

Recent mention · BleepingComputer

SonicWall warns of SMA1000 flaws exploited in zero-day attacks, patch now

BleepingComputer · 14 Jul 2026

SonicWall warns that threat actors have been exploiting two SMA1000 vulnerabilities, tracked as CVE-2026-15409 and CVE-2026-15410, in zero-day attacks and urges customers to install the newly released security updates. [...]

Recent mention · Sonicwall PSIRT

SonicWall SMA1000 Series Appliances Affected By Multiple Vulnerabilities

Sonicwall PSIRT · 14 Jul 2026

1) CVE-2026-15409 - A Server-side request forgery (SSRF) A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A remote unauthenticated attacker could potentially cause the appliance to make requests to unintended location. 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) 2) CVE-2026-15410 - Post-authentication improper control of generation of code ('Code Injection')Post-authentication improper control of generation of code ('Code Injection')...

Recent mention · All CISA Advisories

CISA Adds Four Known Exploited Vulnerabilities to Catalog

All CISA Advisories · 14 Jul 2026

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-15409 SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability CVE-2026-15410 SonicWall SMA1000 Appliances Code Injection Vulnerability CVE-2026-56155 Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability CVE-2026-56164 Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber...

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Ch4120N/CVE-2026-15409

github · Created 2026-08-03 14:59:04 UTC · 1 stars · AI assessment 90%

Proof-of-Concept exploit for CVE-2026-15409 (SonicWall SMA 1000 RCE) via Erlang distribution over WebSocket. Achieves unauthenticated remote code execution as couchdb user.

SonicWall SMA1000 - Server-Side Request Forgery

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. Public PoC available

    Public proof-of-concept code published

  2. Nuclei template available

    Scanner coverage available

  3. Observed by KEV Intelligence sensors

    Evidence-backed exploitation signal

  4. Indicators of compromise added (55)

    Indicators of compromise recorded

  5. Virtual patch available

    Compensating WAF rule available to block exploitation

  6. KEV confirmed by Tenable Blog

    Exploitation attested by an external source

  7. KEV confirmed by Rapid7

    Exploitation attested by an external source

  8. KEV confirmed by TheHackerNews

    Exploitation attested by an external source

  9. KEV confirmed by Daily CyberSecurity

    Exploitation attested by an external source

  10. KEV confirmed by All CISA Advisories

    Exploitation attested by an external source

  11. KEV confirmed by CVE

    Exploitation attested by an external source

  12. CVE published

    Vulnerability disclosed publicly

  13. Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  14. Added to KEV Intelligence KEV Feed

    High-confidence, third-party attested exploitation

  15. 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.

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  • 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-2026-15409

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2026-15409",
  "confidence": "Confirmed",
  "cvss_score": 10.0,
  "cvss_estimated": false,
  "epss_score": 0.74218,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 441, "sensors": 15 }
}

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