High severity · published Apr 29, 2026
CVE-2026-0204
A vulnerability in the access control mechanism of SonicOS may allow certain management interface functions to be accessible under specific conditions
8.0
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability in the access control mechanism of SonicOS may allow certain management interface functions to be accessible under specific conditions.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
SonicOS · SonicWall
6.5.5.1-6n and older versions; 7.0.1-5169 and older versions; 7.3.1-7013 and older versions; 8.1.0-8017 and older versions · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0204
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0204
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0004
More from SonicOS
9.8
CVE-2024-53704
SonicWall SonicOS SSLVPN Improper Authentication Vulnerability
9.8
CVE-2024-40766
SonicWall SonicOS Improper Access Control Vulnerability
9.8
CVE-2020-5135
SonicWall SonicOS Buffer Overflow Vulnerability
9.8
CVE-2025-40600
Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption
9.8
CVE-2024-40765
An Integer-based buffer overflow vulnerability in the SonicOS via IPSec allows a remote attacker in specific conditions to cause Denial of Service (DoS) and potentially execute…