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CVE-2023-41711

SonicOS post-authentication Stack-Based Buffer Overflow Vulnerability in the sonicwall.exp, prefs.exp URL endpoints lead to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-39280

SonicOS p ost-authentication Stack-Based Buffer Overflow vulnerability in the ssoStats-s.xml, ssoStats-s.wri URL endpoints leads to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-39279

SonicOS post-authentication Stack-Based Buffer Overflow vulnerability in the getPacketReplayData.json URL endpoint leads to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-41715

SonicOS post-authentication Improper Privilege Management vulnerability in the SonicOS SSL VPN Tunnel allows users to elevate their privileges inside the tunnel.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-39276

SonicOS post-authentication stack-based buffer overflow vulnerability in the getBookmarkList.json URL endpoint leads to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-39277

SonicOS post-authentication stack-based buffer overflow vulnerability in the sonicflow.csv and appflowsessions.csv URL endpoints leads to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-39278

SonicOS post-authentication user assertion failure leads to Stack-Based Buffer Overflow vulnerability via main.cgi leads to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2023-41712

SonicOS post-authentication Stack-Based Buffer Overflow Vulnerability in the SSL VPN plainprefs.exp URL endpoint leads to a firewall crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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Nsa2700 Nsa3700 Nsa4700 and 58 more
CVE-2026-0206

Post‑Authentication Buffer Overflow in SonicOS Causes Firewall Crash

A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.

CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 2800 and 61 more
CVE-2021-20027

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted request. This vulnerability affects SonicOS Gen5, Gen6, Gen7 platforms, and SonicOSv virtual firewalls.

CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 3650 and 56 more
CVE-2021-20031

A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.

CVSS 3.1 · 6.1 Medium EPSS 13.0% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 3650 and 56 more
CVE-2021-20046

A Stack-based buffer overflow in the SonicOS HTTP Content-Length response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

CVSS 3.1 · 8.8 High EPSS 2.0% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 3650 and 56 more
CVE-2021-20048

A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

CVSS 3.1 · 8.8 High EPSS 2.0% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 3650 and 56 more
CVE-2022-22275

Improper Restriction of TCP Communication Channel in HTTP/S inbound traffic from WAN to DMZ bypassing security policy until TCP handshake potentially resulting in Denial of Service (DoS) attack if a target host is vulnerable.

CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 3650 and 50 more
CVE-2023-1101

SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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Nsa 2600 Nsa 2650 Nsa 2700 and 65 more
CVE-2026-0204

Access Control Bypass in SonicOS Management Functions

A vulnerability in the access control mechanism of SonicOS may allow certain management interface functions to be accessible under specific conditions.

CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 2800 and 61 more
CVE-2026-0205

Post-Authentication Path Traversal in SonicOS Enabling Restricted Service Access

A post-authentication Path Traversal vulnerability in SonicOS allows an attacker to interact with usually restricted services.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
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Nsa 2650 Nsa 2700 Nsa 2800 and 61 more
CVE-2002-2341

Cross-site scripting (XSS) vulnerability in content blocking in SonicWALL SOHO3 6.3.0.0 allows remote attackers to inject arbitrary web script or HTML via a blocked URL.

CVSS 2.0 · 4.3 Medium EPSS 1.6% KEV · Not listed
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CVE-2001-1104

SonicWALL SOHO uses easily predictable TCP sequence numbers, which allows remote attackers to spoof or hijack sessions.

CVSS 2.0 · 7.5 High EPSS 7.0% KEV · Not listed
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