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Fencer Vulns
high 7.3

CVE-2025-15679 json

BMC root account active without password on BullSequana XH3406 and XH3515

published 2026-09-11 59 d ago modified 2026-10-14 25 d ago also EUVD-2025-210890

cvss
7.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

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.

Patch / fix

  • Bull BullSequana XH3406 TS 04.05
  • Bull BullSequana XH3515 TS 43.01

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
58 d ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.3 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
CNA 4.0 7.3 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:U/V:C/RE:L/U:Clear

Affected products

  • Bull BullSequana XH3406
  • Bull BullSequana XH3515

Classification

Weakness
  • CWE-258 Empty Password in Configuration File

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.