CVE-2026-0401
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker...
CVE-2026-0401 is a medium vulnerability (CVSS 4.9) in Sonicwall Sonicos, published February 24, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.
- Severity
- 4.9 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.40%EPSS, 34th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
What each source reports
CVE List Score used
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.
- Record
CVE-2026-0401- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
EUVDEUVD-2026-8523
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.
- Record
EUVD-2026-8523- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xqx8-2c6c-9g3g
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker...
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.
- Record
GHSA-xqx8-2c6c-9g3g- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
NVD
A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.
- Record
CVE-2026-0401- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-09
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.