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Fencer Vulns
medium 4.1

CVE-2019-6155 json

A potential vulnerability was found in an SMI handler in various BIOS versions of certain legacy IBM System x and IBM BladeCenter systems t…

published 2019-04-22 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-15722

cvss
4.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

A potential vulnerability was found in an SMI handler in various BIOS versions of certain legacy IBM System x and IBM BladeCenter systems that could lead to denial of service.

Patch / fix

  • ibm bladecenter_hs23_firmware 3.0.0
  • ibm system_x3530_m4_firmware 3.20
  • ibm system_x3630_m4_firmware 3.20
  • ibm system_x3650_m4_hd_firmware 2.40

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 4.1 CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • IBM System x BIOS
  • IBM BladeCenter BIOS

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.