CVE-2026-0400 json
A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.
published 8mo ago modified 9h ago also EUVD-2026-8524
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.
Patch / fix
- sonicwall sonicos 7.3.2-7010, 8.2.0-8009
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
Affected products
- SonicWall SonicOS
Classification
- Weakness
-
- CWE-134 Use of Externally-Controlled Format String
References
-
psirt.global.sonicwall.com
/vuln-detail/SNWLID-2026-0001
vendor-advisory
Sources
- CVE List CVE-2026-0400
- NVD CVE-2026-0400
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