Stack-based buffer overflow in SonicWall SonicOS
Priority LOW 35CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00914 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SonicWall | SonicOS | 7.3.0-7012 and older versions; 8.0.2-8011 and older versions | — | No fix listed | CNA |
- SonicOS VendorSonicWall Affected 7.3.0-7012 and older versions; 8.0.2-8011 and older versions Fixed in — No fix listed CNA
CPE configurations NVD · 34
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | 7.1.1-7040 to before 7.3.1-7013 | Vulnerable | SonicWall |
| cpe:2.3:h:sonicwall:nsa_2700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_3700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_4700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_5700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_6700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nssp_10700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nssp_11700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nssp_13700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nssp_15700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
- cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* Versions 7.1.1-7040 to before 7.3.1-7013 Vulnerable ·SonicWall
- cpe:2.3:h:sonicwall:nsa_2700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_3700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_4700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_5700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_6700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nssp_10700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nssp_11700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nssp_13700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nssp_15700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
Show 24 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:sonicwall:nsv270:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsv470:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsv870:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz270:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz270w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz370:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz370w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz470:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz470w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz570:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz570p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz570w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz670:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* | before 8.0.3-8011 | Vulnerable | SonicWall |
| cpe:2.3:h:sonicwall:nsa_2800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_3800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_4800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:nsa_5800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz280:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz380:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz480:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz580:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz680:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:tz80:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
- cpe:2.3:h:sonicwall:nsv270:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsv470:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsv870:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz270:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz270w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz370:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz370w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz470:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz470w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz570:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz570p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz570w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz670:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* Versions before 8.0.3-8011 Vulnerable ·SonicWall
- cpe:2.3:h:sonicwall:nsa_2800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_3800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_4800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:nsa_5800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz280:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz480:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz680:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:tz80:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40601
- 2026-10-03 Alias added: GHSA-4h6c-rhpp-q86h
References
More SonicWall Sonicos vulnerabilities
- TI-2020-04229 Buffer overflow in SonicWall SonicOS KEVCVSS 3.1CRITICAL 9.8
- TI-2024-35902 Improper authentication in SonicWall SonicOS KEVCVSS 3.1CRITICAL 9.8
- TI-2024-27152 Improper access control in SonicWall SonicOS KEVCVSS 3.1CRITICAL 9.8
- TI-2022-06604 Stack-based buffer overflow in SonicWall SonicOS CVSS 3.1CRITICAL 9.8
- TI-2019-09143 Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). CVSS 3.1CRITICAL 9.8
- TI-2019-09145 Wind River VxWorks 6.6 through 6.9 has a Buffer Overflow in the DHCP client component. CVSS 3.1HIGH 8.8
Sources
- CVE-2025-40601 · CVE Program
- CVE-2025-40601 · NVD
- FIRST EPSS
- GHSA-4h6c-rhpp-q86h · GitHub Advisory Database · CC BY 4.0
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