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    CVE-2026-0516

    A improper neutralization of HTTP Headers for Scripting Syntax vulnerability in SonicOS could allow a remote attacker to manipulate the Host header and redirect firewall management users to arbitrary web domains.

    Published:Aug 5, 2026
    Last Modified:Aug 5, 2026
    EPS:Aug 5, 2026
    EPSS Score:
    CVSS Score:6.5

    Affected Products

    Vendor
    Sonicwall
    Product
    Sonicos

    Exploits

    No exploit reference

    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