Sonicos

7 CVEs product

Monthly

CVE-2026-3439 MEDIUM This Month

Authenticated users can trigger a stack-based buffer overflow in SonicOS certificate handling to cause denial of service against Sonicos firewalls. The vulnerability requires administrative privileges to exploit and results in firewall crashes rather than code execution. No patch is currently available.

Buffer Overflow Stack Overflow Denial Of Service Sonicos
NVD
CVSS 3.1
4.9
EPSS
0.1%
CVE-2026-0402 MEDIUM This Month

SonicOS firewalls are vulnerable to a post-authentication out-of-bounds read that permits authenticated remote attackers to trigger a denial-of-service condition by crashing the device. The medium-severity vulnerability requires high-level privileges and has no available patch, leaving affected deployments potentially exposed until remediation is released.

Denial Of Service Sonicos
NVD
CVSS 3.1
4.9
EPSS
0.2%
CVE-2026-0401 MEDIUM This Month

SonicOS firewalls are vulnerable to denial-of-service attacks when an authenticated remote attacker triggers a null pointer dereference, causing the device to crash. This post-authentication flaw affects firewall availability but requires valid credentials to exploit. No patch is currently available.

Null Pointer Dereference Denial Of Service Sonicos
NVD
CVSS 3.1
4.9
EPSS
0.2%
CVE-2026-0400 MEDIUM This Month

SonicOS firewalls are vulnerable to a post-authentication format string vulnerability that permits authenticated remote attackers to trigger a denial of service condition and crash the affected device. The attack requires valid credentials but can be executed over the network without user interaction. No patch is currently available for this vulnerability.

Denial Of Service Sonicos
NVD
CVSS 3.1
4.9
EPSS
0.2%
CVE-2026-0399 MEDIUM This Month

SonicOS management interface suffers from stack-based buffer overflow flaws in an API endpoint that allow authenticated administrators to trigger denial of service conditions through improper input validation. The vulnerability affects Stack Overflow and Sonicos products but currently lacks an available patch, leaving deployed systems exposed to authenticated attack vectors with no mitigation path.

Buffer Overflow Stack Overflow Sonicos
NVD
CVSS 3.1
4.9
EPSS
0.1%
CVE-2025-40601 HIGH This Month

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Stack Overflow Denial Of Service Buffer Overflow Sonicos
NVD
CVSS 3.1
7.5
EPSS
0.1%
CVE-2024-53704 CRITICAL KEV THREAT Act Now

SonicWall SonicOS SSLVPN contains an authentication bypass vulnerability allowing remote attackers to bypass authentication mechanisms and gain unauthorized VPN access to protected networks.

Authentication Bypass Sonicos
NVD
CVSS 3.1
9.8
EPSS
93.9%
CVE-2026-3439
EPSS 0% CVSS 4.9
MEDIUM This Month

Authenticated users can trigger a stack-based buffer overflow in SonicOS certificate handling to cause denial of service against Sonicos firewalls. The vulnerability requires administrative privileges to exploit and results in firewall crashes rather than code execution. No patch is currently available.

Buffer Overflow Stack Overflow Denial Of Service +1
NVD
CVE-2026-0402
EPSS 0% CVSS 4.9
MEDIUM This Month

SonicOS firewalls are vulnerable to a post-authentication out-of-bounds read that permits authenticated remote attackers to trigger a denial-of-service condition by crashing the device. The medium-severity vulnerability requires high-level privileges and has no available patch, leaving affected deployments potentially exposed until remediation is released.

Denial Of Service Sonicos
NVD
CVE-2026-0401
EPSS 0% CVSS 4.9
MEDIUM This Month

SonicOS firewalls are vulnerable to denial-of-service attacks when an authenticated remote attacker triggers a null pointer dereference, causing the device to crash. This post-authentication flaw affects firewall availability but requires valid credentials to exploit. No patch is currently available.

Null Pointer Dereference Denial Of Service Sonicos
NVD
CVE-2026-0400
EPSS 0% CVSS 4.9
MEDIUM This Month

SonicOS firewalls are vulnerable to a post-authentication format string vulnerability that permits authenticated remote attackers to trigger a denial of service condition and crash the affected device. The attack requires valid credentials but can be executed over the network without user interaction. No patch is currently available for this vulnerability.

Denial Of Service Sonicos
NVD
CVE-2026-0399
EPSS 0% CVSS 4.9
MEDIUM This Month

SonicOS management interface suffers from stack-based buffer overflow flaws in an API endpoint that allow authenticated administrators to trigger denial of service conditions through improper input validation. The vulnerability affects Stack Overflow and Sonicos products but currently lacks an available patch, leaving deployed systems exposed to authenticated attack vectors with no mitigation path.

Buffer Overflow Stack Overflow Sonicos
NVD
CVE-2025-40601
EPSS 0% CVSS 7.5
HIGH This Month

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Stack Overflow Denial Of Service Buffer Overflow +1
NVD
CVE-2024-53704
EPSS 94% CVSS 9.8
CRITICAL KEV THREAT Act Now

SonicWall SonicOS SSLVPN contains an authentication bypass vulnerability allowing remote attackers to bypass authentication mechanisms and gain unauthorized VPN access to protected networks.

Authentication Bypass Sonicos
NVD

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