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CVE-2026-18449— Supermicro BMC contains a SMCRAKP Fixed Key vulnerability

Quick assessment

Affected
SMCI X12SPI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

BMC 未正确实施对 IPMI 命令的完整性与加密要求。攻击者可能构造数据包，在已建立的会话中执行任意命令。

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-18449

Vulnerability Information
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Vulnerability Title
Supermicro BMC contains a SMCRAKP Fixed Key vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SMCI X12SPI 01.07.20 -

II. Public POCs for CVE-2026-18449

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III. Intelligence Information for CVE-2026-18449

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Other References for CVE-2026-18449 (1)

Same Patch Batch · SMCI · 2026-10-27 · 9 CVEs total

CVE-2026-18450 9.8 CRITICAL Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulne
CVE-2026-65220 8.8 HIGH Supermicro BMC IPMI feature contains a Privilege escalation vulnerability
CVE-2026-65219 7.4 HIGH Supermicro BMC contains Unordered RAKP Message 3 Grants an IPMI Session vulnerability
CVE-2026-16521 7.2 HIGH Supermicro BMC's syslog feature contains a command injection vulnerability
CVE-2026-65211 7.2 HIGH Supermicro BMC IPMI feature contains Critical Privilege Escalation and Arbitrary Access v
CVE-2026-65213 6.6 MEDIUM Supermicro BMC IPMI feature contains a Arbitrary Command Execution with Superuser Privileg
CVE-2026-65210 4.9 MEDIUM Supermicro BMC IPMI feature contains Arbitrary File Access vulnerability
CVE-2026-18451 3.1 LOW Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable

IV. Related Vulnerabilities

Same product: X12SPI
Same vendor: SMCI
Same weakness: CWE-798