Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2026-0400

Summary
Assigner-sonicwall
Assigner Org ID-44b2ff79-1416-4492-88bb-ed0da00c7315
Published At-24 Feb, 2026 | 14:54
Updated At-24 Feb, 2026 | 15:35
Rejected At-
Credits

A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:sonicwall
Assigner Org ID:44b2ff79-1416-4492-88bb-ed0da00c7315
Published At:24 Feb, 2026 | 14:54
Updated At:24 Feb, 2026 | 15:35
Rejected At:
â–¼CVE Numbering Authority (CNA)

A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.

Affected Products
Vendor
SonicWall Inc.SonicWall
Product
SonicOS
Platforms
  • Linux
  • Gen7
  • Gen8
Default Status
unknown
Versions
Affected
  • 7.0.1-5169 and older versions
  • 7.3.1-7013 and older versions
  • 8.1.0-8017 and older versions
Problem Types
TypeCWE IDDescription
CWECWE-134CWE-134 Use of Externally-Controlled Format String
Type: CWE
CWE ID: CWE-134
Description: CWE-134 Use of Externally-Controlled Format String
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Vang3lis and Heuzoo of VARAS@IIE
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001
vendor-advisory
Hyperlink: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001
Resource:
vendor-advisory
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.14.9MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:PSIRT@sonicwall.com
Published At:24 Feb, 2026 | 15:21
Updated At:24 Feb, 2026 | 21:52

A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.14.9MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-134SecondaryPSIRT@sonicwall.com
CWE ID: CWE-134
Type: Secondary
Source: PSIRT@sonicwall.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001PSIRT@sonicwall.com
N/A
Hyperlink: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001
Source: PSIRT@sonicwall.com
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

6Records found

CVE-2026-0402
Matching Score-8
Assigner-SonicWall, Inc.
ShareView Details
Matching Score-8
Assigner-SonicWall, Inc.
CVSS Score-4.9||MEDIUM
EPSS-Not Assigned
Published-24 Feb, 2026 | 14:58
Updated-24 Feb, 2026 | 21:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A post-authentication Out-of-bounds Read vulnerability in SonicOS allows a remote attacker to crash a firewall.

Action-Not Available
Vendor-SonicWall Inc.
Product-SonicOS
CWE ID-CWE-125
Out-of-bounds Read
CVE-2026-0399
Matching Score-8
Assigner-SonicWall, Inc.
ShareView Details
Matching Score-8
Assigner-SonicWall, Inc.
CVSS Score-4.9||MEDIUM
EPSS-Not Assigned
Published-24 Feb, 2026 | 14:52
Updated-24 Feb, 2026 | 21:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple post-authentication stack-based buffer overflow vulnerabilities in the SonicOS management interface due to improper bounds checking in a API endpoint.

Action-Not Available
Vendor-SonicWall Inc.
Product-SonicOS
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-0401
Matching Score-8
Assigner-SonicWall, Inc.
ShareView Details
Matching Score-8
Assigner-SonicWall, Inc.
CVSS Score-4.9||MEDIUM
EPSS-Not Assigned
Published-24 Feb, 2026 | 14:55
Updated-24 Feb, 2026 | 21:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.

Action-Not Available
Vendor-SonicWall Inc.
Product-SonicOS
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2024-29012
Matching Score-8
Assigner-SonicWall, Inc.
ShareView Details
Matching Score-8
Assigner-SonicWall, Inc.
CVSS Score-4.9||MEDIUM
EPSS-2.25% / 84.29%
||
7 Day CHG~0.00%
Published-20 Jun, 2024 | 08:11
Updated-25 Mar, 2025 | 17:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Stack-based buffer overflow vulnerability in the SonicOS HTTP server allows an authenticated remote attacker to cause Denial of Service (DoS) via sscanf function.

Action-Not Available
Vendor-SonicWall Inc.
Product-tz670nssp_11700nssp_10700tz270nsa_2700nsv_470tz470nsa_6700tz270wtz570ptz570nsv_270sonicosnssp_13700tz370tz470wnsa_3700tz370wnsa_5700nsa_4700nsv_870tz570wSonicOS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-40600
Matching Score-6
Assigner-SonicWall, Inc.
ShareView Details
Matching Score-6
Assigner-SonicWall, Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.09% / 25.72%
||
7 Day CHG+0.01%
Published-29 Jul, 2025 | 21:11
Updated-11 Aug, 2025 | 14:59
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption.

Action-Not Available
Vendor-SonicWall Inc.
Product-tz570tz570wtz470wnssp_13700nsv870nsv470nsv270nssp_11700nsa_2700sonicosnsa_3700nsa_5700tz570pnssp_15700tz670tz370wtz270tz270wtz470nsa_4700nsa_6700tz370nssp_10700SonicOS
CWE ID-CWE-134
Use of Externally-Controlled Format String
CVE-2024-12805
Matching Score-6
Assigner-SonicWall, Inc.
ShareView Details
Matching Score-6
Assigner-SonicWall, Inc.
CVSS Score-7.2||HIGH
EPSS-1.08% / 77.49%
||
7 Day CHG-0.44%
Published-09 Jan, 2025 | 07:24
Updated-17 Jan, 2025 | 03:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A post-authentication format string vulnerability in SonicOS management allows a remote attacker to crash a firewall and potentially leads to code execution.

Action-Not Available
Vendor-SonicWall Inc.
Product-SonicOS
CWE ID-CWE-134
Use of Externally-Controlled Format String
Details not found