CVE-2026-18450：Supermicro BMC 允許未受保護 IPMI 指令於活躍 RMCP+ 會話中執行漏洞
CVE-2026-18450 - Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulnerability
Supermicro BMC 允許未受保護的 IPMI 指令在活躍 RMCP+ 會話中被執行，造成遠端命令執行風險。
- 漏洞嚴重度：CVSS 3.1 CRITICAL（AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H）。
此漏洞允許攻擊者在未加密的 IPMI 會話中執行任意指令，提醒企業即刻升級 BMC 韌體並加強 IPMI 設定；若未修補，系統可能遭受遠端命令執行攻擊，造成重大安全風險；同時建議審查 IPMI 存取控制以降低風險，並採取多因素認證保護。
The BMC does not correctly enforce integrity and encryption requirements for IPMI commands. An attacker may be able to craft packets that execute arbitrary commands on an active session.
Impact
Affected Products
The following products are affected by CVE-2026-18450
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
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | def9a96e-e099-41a9-bfac-30fd4f82c411 | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE |
Enforce IPMI command integrity and encryption requirements to prevent command execution.
- Update BMC firmware to the latest version.
- Configure IPMI to enforce integrity and encryption.
- Review and restrict IPMI access controls.
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18450.
| URL | Resource |
|---|---|
| https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1 |
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18450 is
associated with the following CWEs:
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-2026-18450
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-2026-18450 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18450 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
十月. 27, 2026
Action Type Old Value New Value Added Description The BMC does not correctly enforce integrity and encryption requirements for IPMI commands. An attacker may be able to craft packets that execute arbitrary commands on an active session. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-306 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/18xxx/CVE-2026-18450.json">CVE-2026-18450</a> Added Reference https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.