Out-of-bounds read in SonicWall Switch
Priority LOW 36CWE-125Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP Protocol allows an attacker to cause a system instability or potentially read sensitive information from the memory locations.
Why it matters now
EPSS 0.00635 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SonicWall | SonicWall Switch | up to 1.0.0.5-16 | — | No fix listed | CNA |
- SonicWall Switch VendorSonicWall Affected up to 1.0.0.5-16 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:sonicwall:switch:*:*:*:*:*:*:*:* | up to 1.0.0.5-16 | Vulnerable | SonicWall |
| cpe:2.3:h:sonicwall:sws12-10fpoe:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:sws12-8:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:sws12-8poe:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:sws14-24:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:sws14-24fpoe:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:sws14-48:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
| cpe:2.3:h:sonicwall:sws14-48fpoe:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SonicWall |
- cpe:2.3:o:sonicwall:switch:*:*:*:*:*:*:*:* Versions up to 1.0.0.5-16 Vulnerable ·SonicWall
- cpe:2.3:h:sonicwall:sws12-10fpoe:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:sws12-8:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:sws12-8poe:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:sws14-24:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:sws14-24fpoe:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:sws14-48:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SonicWall
- cpe:2.3:h:sonicwall:sws14-48fpoe:-:*:*:*:*:*:*:* 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-2021-20024
- 2026-10-03 Alias added: GHSA-gp55-8ww8-jfq2
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2021-20024 · CVE Program
- CVE-2021-20024 · NVD
- FIRST EPSS
- GHSA-gp55-8ww8-jfq2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences