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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-3820

There is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR.

HIGH 7.2EPSS 0.37%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
0.37% probability · 30th percentile
CISA KEV
Not listed
Weakness
CWE-78
Source
def9a96e-e099-41a9-bfac-30fd4f82c411

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.