CVE-2021-36343
MEDIUMCVSS 6.4/10EPSS 0.24%
Last modified
CVE-2021-36343 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.
Metrics
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Dell | Precision 5820 Tower Firmware | < 2.12.1 |
| Dell | Precision 7510 Firmware | < 1.24.3 |
| Dell | Precision 7520 Firmware | < 1.22.0 |
| Dell | Precision 7530 Firmware | < 1.18.2 |
| Dell | Precision 7540 Firmware | < 1.15.1 |
| Dell | Precision 7550 Firmware | < 1.10.1 |
| Dell | Precision 7560 Firmware | < 1.5.0 |
| Dell | Precision 7710 Firmware | < 1.24.3 |
| Dell | Precision 7720 Firmware | < 1.22.0 |
| Dell | Precision 7730 Firmware | < 1.18.2 |
| Dell | Precision 7740 Firmware | < 1.15.1 |
| Dell | Precision 7750 Firmware | < 1.10.1 |
| Dell | Precision 7760 Firmware | < 1.5.0 |
| Dell | Vostro 13 5370 Firmware | < 1.20.0 |
| Dell | Vostro 14 3468 Firmware | < 3.10.0 |
| Dell | Vostro 14 3478 Firmware | < 1.15.0 |
| Dell | Vostro 14 5468 Firmware | < 1.17.0 |
| Dell | Vostro 14 5471 Firmware | < 1.20.0 |
| Dell | Vostro 15 3568 Firmware | < 3.10.0 |
| Dell | Vostro 15 3572 Firmware | < 1.12.0 |
| Dell | Vostro 15 3578 Firmware | < 1.15.0 |
| Dell | Vostro 15 5410 Firmware | < 2.4.1 |
| Dell | Vostro 15 5510 Firmware | < 2.4.1 |
| Dell | Vostro 15 5568 Firmware | < 1.17.0 |
| Dell | Vostro 15 7570 Firmware | < 1.15.0 |
| Dell | Vostro 15 7580 Firmware | < 1.18.0 |
| Dell | Vostro 3070 Firmware | < 2.20.0 |
| Dell | Vostro 3267 Firmware | < 1.18.0 |
| Dell | Vostro 3268 Firmware | < 1.18.0 |
| Dell | Vostro 3400 Firmware | < 1.9.0 |
| Dell | Vostro 3401 Firmware | < 1.9.0 |
| Dell | Vostro 3470 Firmware | < 2.20.0 |
| Dell | Vostro 3471 Firmware | < 1.8.0 |
| Dell | Vostro 3480 Firmware | < 1.16.0 |
| Dell | Vostro 3481 Firmware | < 1.15.0 |
| Dell | Vostro 3490 Firmware | < 1.15.0 |
| Dell | Vostro 3500 Firmware | < 1.9.0 |
| Dell | Vostro 3501 Firmware | < 1.9.0 |
| Dell | Vostro 3510 Firmware | < 1.6.0 |
| Dell | Vostro 3562 Firmware | < 1.19.0 |
| Dell | Vostro 3580 Firmware | < 1.16.0 |
| Dell | Vostro 3581 Firmware | < 1.15.0 |
| Dell | Vostro 3582 Firmware | < 1.11.0 |
| Dell | Vostro 3583 Firmware | < 1.16.0 |
| Dell | Vostro 3584 Firmware | < 1.15.0 |
| Dell | Vostro 3590 Firmware | < 1.15.0 |
| Dell | Vostro 3660 Firmware | < 1.18.0 |
| Dell | Vostro 3667 Firmware | < 1.18.0 |
| Dell | Vostro 3668 Firmware | < 1.18.0 |
| Dell | Vostro 3669 Firmware | < 1.18.0 |
Showing 50 of 414 affected configurations. See NVD for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-36343?
Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.
How severe is CVE-2021-36343?
CVE-2021-36343 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36343?
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-2021-36343?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST