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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-2023-39279

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-2023-39280

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-2023-41711

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-2023-41712

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-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-2026-0206

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-2022-22278

A vulnerability in SonicOS CFS (Content filtering service) returns a large 403 forbidden HTTP response message to the source address when users try to access prohibited resource this allows an attacker to cause HTTP Denial of Service (DoS) attack

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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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