Sonicos
CVE-2026-0400
MEDIUM
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.
AnalysisAI
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.
Technical ContextAI
Classified as CWE-134 (Use of Externally-Controlled Format String). Affects Sonicos. A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). Rated critical severity (CVSS 9.8), this v
Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. Rated high severity (CVSS 7.5), this vulne
A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management
An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially lea
An improper authentication vulnerability has been identified in SonicWall SonicOS SSL-VPN feature, which in specific con
A Stack-based buffer overflow vulnerability in the SonicOS via HTTP request allows a remote unauthenticated attacker to
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially exe
Wind River VxWorks 6.7 though 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 3 of 4). Rated critical seve
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 2 of 4). Rated critical severity (CVSS
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. Rated critical severity (CVSS 9.8), this vul
Same weakness CWE-134 – Use of Externally-Controlled Format String
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today