CVE-2021-20019
HIGHCVSS 7.5/10EPSS 1.41%
Last modified
CVE-2021-20019 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in SonicOS where the HTTP server response leaks partial memory by sending a crafted HTTP request, this can potentially lead to an internal sensitive data disclosure vulnerability.. EPSS estimates a 1.41% chance of exploitation in the next 30 days.
Description
A vulnerability in SonicOS where the HTTP server response leaks partial memory by sending a crafted HTTP request, this can potentially lead to an internal sensitive data disclosure vulnerability.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sonicwall | Sonicos | >= 7.0.0, < 7.0.0.376 |
| Sonicwall | Sonicos | >= 7.0.1, < 7.0.1-r1036 |
| Sonicwall | Sonicos | 6.0.5.3-94o |
| Sonicwall | Sonicos | 6.5.1.12-3n |
| Sonicwall | Sonicos | 6.5.4.7-83n |
| Sonicwall | Sonicosv | 6.5.4.4-44v-21-955 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20019?
A vulnerability in SonicOS where the HTTP server response leaks partial memory by sending a crafted HTTP request, this can potentially lead to an internal sensitive data disclosure vulnerability.
How severe is CVE-2021-20019?
CVE-2021-20019 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20019?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-20019?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST