Server-Side Request Forgery in SonicWall SMA1000 Appliance Work Place Interface
CVE-2026-15409
Key Information:
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What is CVE-2026-15409?
CVE-2026-15409 is a security vulnerability affecting the SonicWall SMA1000 Appliance Work Place interface. This vulnerability falls under the category of Server-Side Request Forgery (SSRF), which allows an unauthenticated remote attacker to send crafted requests that the affected appliance might forward to undesired locations. SSRF vulnerabilities are particularly dangerous as they can be exploited to circumvent authorization controls, potentially leading to sensitive data exposure or interaction with internal services that are not intended to be accessible from external networks. As organizations rely on SonicWall SMA1000 appliances for secure remote access, this vulnerability poses a significant risk to the confidentiality and integrity of organizational data.
Potential Impact of CVE-2026-15409
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Unauthorized Access to Internal Resources: Exploitation of this vulnerability could allow attackers to manipulate the appliance into making requests to internal systems that should otherwise be protected, potentially leading to unauthorized access and information disclosure.
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Data Leakage: Given the nature of SSRF, attackers could extract sensitive information from internal services or databases, leading to data breaches that could compromise customer data or proprietary information.
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Increased Attack Surface: The ability of attackers to direct requests to sensitive endpoints may facilitate further attacks, including the potential for additional exploitation of internal services, which could lead to broader network compromise or the installation of malicious payloads.
CISA has reported CVE-2026-15409
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2026-15409 as being exploited and is known by the CISA as enabling ransomware campaigns.
The CISA's recommendation is: 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.
Affected Version(s)
SMA1000 Linux 12.4.3-03245 <= 12.4.3-03434
SMA1000 Linux 12.5.0-02283 <= 12.5.0-02800
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
News Articles
Help Net SecuritySonicWall SMA zero-days were exploited weeks before disclosure - Help Net Security
CVE-2026-15409 and CVE-2026-15410 were exploited since June 22, 2026, allowing threat actors to install custom malware.
2 weeks ago
SwapupdateSonicWall SMA Zero-Days Exploited Before Disclosure to Gain Root Access
Ravie LakshmananJul 19, 2026Vulnerability / Network Security
2 weeks ago
The Hacker NewsSonicWall SMA Zero-Days Exploited Before Disclosure to Gain Root Access
Volexity links UTA0533 to two SonicWall SMA 1000 zero-days used before disclosure to gain root, plant malware, and capture LDAP credentials.
2 weeks ago
References
EPSS Score
78% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
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Vulnerability started trending
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Used in Ransomware
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First article discovered by It Security News
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Public PoC available
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Exploit known to exist
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CISA Reported
Vulnerability published
Vulnerability Reserved