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    CVE-2023-0656

    A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

    Published:Mar 2, 2023
    Last Modified:Mar 7, 2025
    EPS:Mar 2, 2023
    EPSS Score:0.37938
    CVSS Score:7.5

    Affected Products

    Vendor
    Sonicwall
    Product
    Nsa 2700
    Vendor
    Sonicwall
    Product
    Nsa 3700
    Vendor
    Sonicwall
    Product
    Nsa 4700
    Vendor
    Sonicwall
    Product
    Nsa 5700
    Vendor
    Sonicwall
    Product
    Nsa 6700
    Vendor
    Sonicwall
    Product
    Nssp 10700
    Vendor
    Sonicwall
    Product
    Nssp 11700
    Vendor
    Sonicwall
    Product
    Nssp 13700
    Vendor
    Sonicwall
    Product
    Nssp 15700
    Vendor
    Sonicwall
    Product
    Nsv 10
    Vendor
    Sonicwall
    Product
    Nsv 100
    Vendor
    Sonicwall
    Product
    Nsv 1600
    Vendor
    Sonicwall
    Product
    Nsv 200
    Vendor
    Sonicwall
    Product
    Nsv 25
    Vendor
    Sonicwall
    Product
    Nsv 270
    Vendor
    Sonicwall
    Product
    Nsv 300
    Vendor
    Sonicwall
    Product
    Nsv 400
    Vendor
    Sonicwall
    Product
    Nsv 470
    Vendor
    Sonicwall
    Product
    Nsv 50
    Vendor
    Sonicwall
    Product
    Nsv 800
    Vendor
    Sonicwall
    Product
    Nsv 870
    Vendor
    Sonicwall
    Product
    Sonicos
    Vendor
    Sonicwall
    Product
    Tz270
    Vendor
    Sonicwall
    Product
    Tz270w
    Vendor
    Sonicwall
    Product
    Tz370
    Vendor
    Sonicwall
    Product
    Tz370w
    Vendor
    Sonicwall
    Product
    Tz470
    Vendor
    Sonicwall
    Product
    Tz470w
    Vendor
    Sonicwall
    Product
    Tz570
    Vendor
    Sonicwall
    Product
    Tz570p
    Vendor
    Sonicwall
    Product
    Tz570w
    Vendor
    Sonicwall
    Product
    Tz670

    Exploits

    https://github.com/BishopFox/CVE-2022-22274_CVE-2023-0656

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-0206 (CVSS 4.9) — A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash…
    CVE-2026-0205 (CVSS 6.8) — A post-authentication Path Traversal vulnerability in SonicOS allows an attacker to interact with usually rest…
    CVE-2026-0204 (CVSS 8) — A vulnerability in the access control mechanism of SonicOS may allow certain management interface functions to…
    CVE-2026-3439 (CVSS 4.9) — A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remot…
    CVE-2026-0402 (CVSS 4.9) — A post-authentication Out-of-bounds Read vulnerability in SonicOS allows a remote attacker to crash a firewall…
    CVE-2026-0401 (CVSS 4.9) — A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a fi…
    CVE-2026-0400 (CVSS 4.9) — A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.…
    CVE-2026-0399 (CVSS 4.9) — Multiple post-authentication stack-based buffer overflow vulnerabilities in the SonicOS management interface d…
    CVE-2025-40601 (CVSS 7.5) — A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated atta…
    CVE-2025-40600 (CVSS 9.8) — Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unau…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High