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 7y ago modified 2026-06-17 4mo 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

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

fixed in 4

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

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Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

support.lenovo.com /solutions/LEN-25165
third-party-advisory

Sources

CVE List CVE-2019-6155
NVD CVE-2019-6155

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