High severity · published Sep 11, 2026
CVE-2025-15679
BMC root account active without password on BullSequana XH3406 and XH3515
7.3
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BX
BullSequana XH3406 · Bull
before TS 04.05 · source: vendor
BX
BullSequana XH3515 · Bull
before TS 43.01 · source: vendor