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CVE-2025-15679— BMC root account active without password on BullSequana XH3406 and XH3515

Quick assessment

Affected
Bull BullSequana XH3406
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.

BullSequana XH3406是Bull公司的一款面向高性能计算场景的高密度机架式服务器。 BullSequana XH3406 TS 04.05之前版本和BullSequana XH3515 TS 43.01之前版本存在信任管理问题漏洞，该漏洞源于在重置为出厂默认等特定情况下，BMC root账户被激活且密码为空，可能导致未授权访问。

CVSS 7.3 · High EPSS 0.16% · P5

Affected Version Matrix 2

VendorProduct Version RangeStatus
Bull BullSequana XH3406 < TS 04.05 affected
Bull BullSequana XH3515 < TS 43.01 affected
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I. Basic Information for CVE-2025-15679

Vulnerability Information
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Vulnerability Title
BMC root account active without password on BullSequana XH3406 and XH3515
Source: CVE Program / CVE List V5
Vulnerability Description
Under certain circumstances such as reset to factory default operation, the BMC root account is made active without a password on BullSequana XH3406 and XH3515.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:P/S:P/AU:N/R:U/V:C/RE:L/U:Clear
Source: CVE Program / CVE List V5
Vulnerability Type
配置文件中缺省空口令
Source: CVE Program / CVE List V5
Vulnerability Title
BullSequana XH3406 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BullSequana XH3406是Bull公司的一款面向高性能计算场景的高密度机架式服务器。 BullSequana XH3406 TS 04.05之前版本和BullSequana XH3515 TS 43.01之前版本存在信任管理问题漏洞，该漏洞源于在重置为出厂默认等特定情况下，BMC root账户被激活且密码为空，可能导致未授权访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Bull BullSequana XH3406 0 ~ TS 04.05 -
Bull BullSequana XH3515 0 ~ TS 43.01 -

II. Public POCs for CVE-2025-15679

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-15679

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Vendor Advisories for CVE-2025-15679 (1)

Vendor Pages for CVE-2025-15679 (1)

IV. Related Vulnerabilities

Same weakness: CWE-258