CVE-2026-3820
Supermicro BMC's SMTP service contains a command injection vulnerability
Description
There is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR. An attacker may obtain administrator privileges and inject specially crafted characters into the SMTP service configuration. This may cause the underlying system to execute unintended commands during process invocation. Potential impact includes denial-of-service attacks, arbitrary code execution, or permanent compromise of the controller.
INFO
Published Date :
June 4, 2026, 9:16 a.m.
Last Modified :
June 4, 2026, 9:16 a.m.
Remotely Exploit :
Yes !
Source :
def9a96e-e099-41a9-bfac-30fd4f82c411
Affected Products
The following products are affected by CVE-2026-3820
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | def9a96e-e099-41a9-bfac-30fd4f82c411 |
Solution
- Update the Supermicro BMC firmware.
- Restrict access to the SMTP service.
- Monitor system logs for suspicious activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-3820.
| URL | Resource |
|---|---|
| https://www.supermicro.com/en/support/security_BMC_IPMI_Jun_2026 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-3820 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-3820
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-3820 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-3820 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by def9a96e-e099-41a9-bfac-30fd4f82c411
Jun. 04, 2026
Action Type Old Value New Value Added Description There is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR. An attacker may obtain administrator privileges and inject specially crafted characters into the SMTP service configuration. This may cause the underlying system to execute unintended commands during process invocation. Potential impact includes denial-of-service attacks, arbitrary code execution, or permanent compromise of the controller. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://www.supermicro.com/en/support/security_BMC_IPMI_Jun_2026