DEBIAN-CVE-2026-20901

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Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-20901
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20901.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-20901
Upstream
  • CVE-2026-20901
Published
2026-08-11T18:17:24Z
Modified
2026-09-14T17:02:40Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.

References

Affected packages

Debian:12 / intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/debian/intel-microcode?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.20080131-1
0.20080220-1
0.20080401-1
0.20080910-1
0.20080910-2
0.20090330-1
0.20090927-1
0.20100826-1
0.20100914-1
0.20101123-1
0.20110428-1
0.20110915-1
0.20111110-1
0.20120606-1
1.*
1.20120606.1
1.20120606.2
1.20120606.3
1.20120606.4
1.20120606.5
1.20120606.6~bpo60+1
1.20120606.6
1.20120606.v2.1
1.20120606.v2.2~bpo60+1
1.20120606.v2.2
1.20130222.1~bpo60+1
1.20130222.1
1.20130222.3
1.20130222.4
1.20130222.5
1.20130222.6
1.20130808.1
1.20130808.2
1.20130906.1
1.20140122.1~bpo60+1
1.20140122.1
1.20140430.1~bpo60+1
1.20140430.1
1.20140624.1~bpo60+1
1.20140624.1
1.20140913.1~bpo60+1
1.20140913.1
1.20150121.1
2.*
2.20130808.1~bpo70+1
2.20130808.1
2.20130906.1~bpo70+1
2.20130906.1
2.20140122.1~bpo70+1
2.20140122.1
2.20140430.1~bpo70+1
2.20140430.1
2.20140624.1~bpo70+1
2.20140624.1
3.*
3.20140913.1~bpo70+1
3.20140913.1~bpo70+2
3.20140913.1
3.20150107.1~bpo70+1
3.20150107.1
3.20150121.1~bpo70+1
3.20150121.1
3.20151106.1~bpo7+1
3.20151106.1~bpo8+1
3.20151106.1~deb8u1
3.20151106.1
3.20151106.2
3.20160607.1
3.20160607.2~bpo8+1
3.20160607.2
3.20160714.1~bpo8+1
3.20160714.1~deb8u1~bpo7+1
3.20160714.1~deb8u1
3.20160714.1
3.20161104.1~bpo8+1
3.20161104.1~deb8u1~bpo7+1
3.20161104.1~deb8u1
3.20161104.1
3.20170511.1~bpo8+1
3.20170511.1
3.20170707.1~bpo8+1
3.20170707.1~bpo9+1
3.20170707.1~deb8u1
3.20170707.1~deb9u1
3.20170707.1
3.20171117.1~bpo8+1
3.20171117.1~bpo9+1
3.20171117.1
3.20171215.1
3.20180108.1
3.20180108.1+really20171117.1
3.20180312.1~bpo8+1
3.20180312.1~bpo9+1
3.20180312.1
3.20180425.1~bpo8+1
3.20180425.1~bpo9+1
3.20180425.1~deb8u1
3.20180425.1~deb9u1
3.20180425.1
3.20180703.1
3.20180703.2~bpo8+1
3.20180703.2~bpo9+1
3.20180703.2~deb8u1
3.20180703.2~deb9u1
3.20180703.2
3.20180807a.1~bpo8+1
3.20180807a.1~bpo9+1
3.20180807a.1~deb8u1
3.20180807a.1~deb9u1
3.20180807a.1
3.20180807a.2~bpo8+1
3.20180807a.2~bpo9+1
3.20180807a.2~deb9u1
3.20180807a.2
3.20190312.1~bpo9+1
3.20190312.1
3.20190514.1~deb8u1
3.20190514.1~deb9u1
3.20190514.1
3.20190618.1~deb8u1
3.20190618.1~deb9u1
3.20190618.1
3.20190918.1
3.20191112.1~deb9u1
3.20191112.1~deb10u1
3.20191112.1
3.20191113.1
3.20191115.1~deb9u1
3.20191115.1~deb10u1
3.20191115.1
3.20191115.2~deb8u1
3.20191115.2~deb9u1
3.20191115.2~deb10u1
3.20191115.2
3.20200508.1
3.20200520.1
3.20200609.1~deb9u1
3.20200609.1~deb10u1
3.20200609.1
3.20200609.2~deb8u1
3.20200609.2~deb9u1
3.20200609.2~deb10u1
3.20200609.2
3.20200616.1~deb9u1
3.20200616.1~deb10u1
3.20200616.1
3.20201110.1
3.20201118.1~bpo10+1
3.20201118.1~deb9u1
3.20201118.1~deb10u1
3.20201118.1
3.20210216.1~deb10u1
3.20210216.1
3.20210608.1
3.20210608.2~deb9u2
3.20210608.2~deb10u1
3.20210608.2
3.20220207.1~bpo11+1
3.20220207.1~deb10u1
3.20220207.1~deb11u1
3.20220207.1
3.20220510.1~deb10u1
3.20220510.1~deb11u1
3.20220510.1
3.20220809.1
3.20221108.1
3.20221108.2
3.20230214.1~deb10u1
3.20230214.1~deb11u1
3.20230214.1
3.20230512.1
3.20230808.1~deb10u1
3.20230808.1~deb11u1
3.20230808.1~deb12u1
3.20230808.1
3.20231114.1~deb10u1
3.20231114.1~deb11u1
3.20231114.1~deb12u1
3.20231114.1
3.20240312.1~deb10u1
3.20240312.1~deb11u1
3.20240312.1~deb12u1
3.20240312.1
3.20240514.1~deb11u1
3.20240514.1~deb12u1
3.20240514.1
3.20240531.1
3.20240531.1+nmu1
3.20240813.1~deb11u1
3.20240813.1~deb12u1
3.20240813.1
3.20240813.2
3.20240910.1~deb11u1
3.20240910.1~deb12u1
3.20240910.1
3.20241112.1~deb11u1
3.20241112.1~deb12u1
3.20241112.1
3.20250211.1~deb11u1
3.20250211.1~deb12u1
3.20250211.1
3.20250512.1~deb11u1
3.20250512.1~deb12u1
3.20250512.1
3.20250812.1~deb11u1
3.20250812.1~deb12u1
3.20250812.1~deb13u1
3.20250812.1
3.20251111.1~deb12u1
3.20251111.1~deb13u1
3.20251111.1
3.20260210.1
3.20260227.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20901.json"

Debian:13 / intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/debian/intel-microcode?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.20080131-1
0.20080220-1
0.20080401-1
0.20080910-1
0.20080910-2
0.20090330-1
0.20090927-1
0.20100826-1
0.20100914-1
0.20101123-1
0.20110428-1
0.20110915-1
0.20111110-1
0.20120606-1
1.*
1.20120606.1
1.20120606.2
1.20120606.3
1.20120606.4
1.20120606.5
1.20120606.6~bpo60+1
1.20120606.6
1.20120606.v2.1
1.20120606.v2.2~bpo60+1
1.20120606.v2.2
1.20130222.1~bpo60+1
1.20130222.1
1.20130222.3
1.20130222.4
1.20130222.5
1.20130222.6
1.20130808.1
1.20130808.2
1.20130906.1
1.20140122.1~bpo60+1
1.20140122.1
1.20140430.1~bpo60+1
1.20140430.1
1.20140624.1~bpo60+1
1.20140624.1
1.20140913.1~bpo60+1
1.20140913.1
1.20150121.1
2.*
2.20130808.1~bpo70+1
2.20130808.1
2.20130906.1~bpo70+1
2.20130906.1
2.20140122.1~bpo70+1
2.20140122.1
2.20140430.1~bpo70+1
2.20140430.1
2.20140624.1~bpo70+1
2.20140624.1
3.*
3.20140913.1~bpo70+1
3.20140913.1~bpo70+2
3.20140913.1
3.20150107.1~bpo70+1
3.20150107.1
3.20150121.1~bpo70+1
3.20150121.1
3.20151106.1~bpo7+1
3.20151106.1~bpo8+1
3.20151106.1~deb8u1
3.20151106.1
3.20151106.2
3.20160607.1
3.20160607.2~bpo8+1
3.20160607.2
3.20160714.1~bpo8+1
3.20160714.1~deb8u1~bpo7+1
3.20160714.1~deb8u1
3.20160714.1
3.20161104.1~bpo8+1
3.20161104.1~deb8u1~bpo7+1
3.20161104.1~deb8u1
3.20161104.1
3.20170511.1~bpo8+1
3.20170511.1
3.20170707.1~bpo8+1
3.20170707.1~bpo9+1
3.20170707.1~deb8u1
3.20170707.1~deb9u1
3.20170707.1
3.20171117.1~bpo8+1
3.20171117.1~bpo9+1
3.20171117.1
3.20171215.1
3.20180108.1
3.20180108.1+really20171117.1
3.20180312.1~bpo8+1
3.20180312.1~bpo9+1
3.20180312.1
3.20180425.1~bpo8+1
3.20180425.1~bpo9+1
3.20180425.1~deb8u1
3.20180425.1~deb9u1
3.20180425.1
3.20180703.1
3.20180703.2~bpo8+1
3.20180703.2~bpo9+1
3.20180703.2~deb8u1
3.20180703.2~deb9u1
3.20180703.2
3.20180807a.1~bpo8+1
3.20180807a.1~bpo9+1
3.20180807a.1~deb8u1
3.20180807a.1~deb9u1
3.20180807a.1
3.20180807a.2~bpo8+1
3.20180807a.2~bpo9+1
3.20180807a.2~deb9u1
3.20180807a.2
3.20190312.1~bpo9+1
3.20190312.1
3.20190514.1~deb8u1
3.20190514.1~deb9u1
3.20190514.1
3.20190618.1~deb8u1
3.20190618.1~deb9u1
3.20190618.1
3.20190918.1
3.20191112.1~deb9u1
3.20191112.1~deb10u1
3.20191112.1
3.20191113.1
3.20191115.1~deb9u1
3.20191115.1~deb10u1
3.20191115.1
3.20191115.2~deb8u1
3.20191115.2~deb9u1
3.20191115.2~deb10u1
3.20191115.2
3.20200508.1
3.20200520.1
3.20200609.1~deb9u1
3.20200609.1~deb10u1
3.20200609.1
3.20200609.2~deb8u1
3.20200609.2~deb9u1
3.20200609.2~deb10u1
3.20200609.2
3.20200616.1~deb9u1
3.20200616.1~deb10u1
3.20200616.1
3.20201110.1
3.20201118.1~bpo10+1
3.20201118.1~deb9u1
3.20201118.1~deb10u1
3.20201118.1
3.20210216.1~deb10u1
3.20210216.1
3.20210608.1
3.20210608.2~deb9u2
3.20210608.2~deb10u1
3.20210608.2
3.20220207.1~bpo11+1
3.20220207.1~deb10u1
3.20220207.1~deb11u1
3.20220207.1
3.20220510.1~deb10u1
3.20220510.1~deb11u1
3.20220510.1
3.20220809.1
3.20221108.1
3.20221108.2
3.20230214.1~deb10u1
3.20230214.1~deb11u1
3.20230214.1
3.20230512.1
3.20230808.1~deb10u1
3.20230808.1~deb11u1
3.20230808.1~deb12u1
3.20230808.1
3.20231114.1~deb10u1
3.20231114.1~deb11u1
3.20231114.1~deb12u1
3.20231114.1
3.20240312.1~deb10u1
3.20240312.1~deb11u1
3.20240312.1~deb12u1
3.20240312.1
3.20240514.1~deb11u1
3.20240514.1~deb12u1
3.20240514.1
3.20240531.1
3.20240531.1+nmu1
3.20240813.1~deb11u1
3.20240813.1~deb12u1
3.20240813.1
3.20240813.2
3.20240910.1~deb11u1
3.20240910.1~deb12u1
3.20240910.1
3.20241112.1~deb11u1
3.20241112.1~deb12u1
3.20241112.1
3.20250211.1~deb11u1
3.20250211.1~deb12u1
3.20250211.1
3.20250512.1~deb11u1
3.20250512.1~deb12u1
3.20250512.1
3.20250812.1~deb11u1
3.20250812.1~deb12u1
3.20250812.1~deb13u1
3.20250812.1
3.20251111.1~deb12u1
3.20251111.1~deb13u1
3.20251111.1
3.20260210.1
3.20260227.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20901.json"

Debian:14 / intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/debian/intel-microcode?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.20080131-1
0.20080220-1
0.20080401-1
0.20080910-1
0.20080910-2
0.20090330-1
0.20090927-1
0.20100826-1
0.20100914-1
0.20101123-1
0.20110428-1
0.20110915-1
0.20111110-1
0.20120606-1
1.*
1.20120606.1
1.20120606.2
1.20120606.3
1.20120606.4
1.20120606.5
1.20120606.6~bpo60+1
1.20120606.6
1.20120606.v2.1
1.20120606.v2.2~bpo60+1
1.20120606.v2.2
1.20130222.1~bpo60+1
1.20130222.1
1.20130222.3
1.20130222.4
1.20130222.5
1.20130222.6
1.20130808.1
1.20130808.2
1.20130906.1
1.20140122.1~bpo60+1
1.20140122.1
1.20140430.1~bpo60+1
1.20140430.1
1.20140624.1~bpo60+1
1.20140624.1
1.20140913.1~bpo60+1
1.20140913.1
1.20150121.1
2.*
2.20130808.1~bpo70+1
2.20130808.1
2.20130906.1~bpo70+1
2.20130906.1
2.20140122.1~bpo70+1
2.20140122.1
2.20140430.1~bpo70+1
2.20140430.1
2.20140624.1~bpo70+1
2.20140624.1
3.*
3.20140913.1~bpo70+1
3.20140913.1~bpo70+2
3.20140913.1
3.20150107.1~bpo70+1
3.20150107.1
3.20150121.1~bpo70+1
3.20150121.1
3.20151106.1~bpo7+1
3.20151106.1~bpo8+1
3.20151106.1~deb8u1
3.20151106.1
3.20151106.2
3.20160607.1
3.20160607.2~bpo8+1
3.20160607.2
3.20160714.1~bpo8+1
3.20160714.1~deb8u1~bpo7+1
3.20160714.1~deb8u1
3.20160714.1
3.20161104.1~bpo8+1
3.20161104.1~deb8u1~bpo7+1
3.20161104.1~deb8u1
3.20161104.1
3.20170511.1~bpo8+1
3.20170511.1
3.20170707.1~bpo8+1
3.20170707.1~bpo9+1
3.20170707.1~deb8u1
3.20170707.1~deb9u1
3.20170707.1
3.20171117.1~bpo8+1
3.20171117.1~bpo9+1
3.20171117.1
3.20171215.1
3.20180108.1
3.20180108.1+really20171117.1
3.20180312.1~bpo8+1
3.20180312.1~bpo9+1
3.20180312.1
3.20180425.1~bpo8+1
3.20180425.1~bpo9+1
3.20180425.1~deb8u1
3.20180425.1~deb9u1
3.20180425.1
3.20180703.1
3.20180703.2~bpo8+1
3.20180703.2~bpo9+1
3.20180703.2~deb8u1
3.20180703.2~deb9u1
3.20180703.2
3.20180807a.1~bpo8+1
3.20180807a.1~bpo9+1
3.20180807a.1~deb8u1
3.20180807a.1~deb9u1
3.20180807a.1
3.20180807a.2~bpo8+1
3.20180807a.2~bpo9+1
3.20180807a.2~deb9u1
3.20180807a.2
3.20190312.1~bpo9+1
3.20190312.1
3.20190514.1~deb8u1
3.20190514.1~deb9u1
3.20190514.1
3.20190618.1~deb8u1
3.20190618.1~deb9u1
3.20190618.1
3.20190918.1
3.20191112.1~deb9u1
3.20191112.1~deb10u1
3.20191112.1
3.20191113.1
3.20191115.1~deb9u1
3.20191115.1~deb10u1
3.20191115.1
3.20191115.2~deb8u1
3.20191115.2~deb9u1
3.20191115.2~deb10u1
3.20191115.2
3.20200508.1
3.20200520.1
3.20200609.1~deb9u1
3.20200609.1~deb10u1
3.20200609.1
3.20200609.2~deb8u1
3.20200609.2~deb9u1
3.20200609.2~deb10u1
3.20200609.2
3.20200616.1~deb9u1
3.20200616.1~deb10u1
3.20200616.1
3.20201110.1
3.20201118.1~bpo10+1
3.20201118.1~deb9u1
3.20201118.1~deb10u1
3.20201118.1
3.20210216.1~deb10u1
3.20210216.1
3.20210608.1
3.20210608.2~deb9u2
3.20210608.2~deb10u1
3.20210608.2
3.20220207.1~bpo11+1
3.20220207.1~deb10u1
3.20220207.1~deb11u1
3.20220207.1
3.20220510.1~deb10u1
3.20220510.1~deb11u1
3.20220510.1
3.20220809.1
3.20221108.1
3.20221108.2
3.20230214.1~deb10u1
3.20230214.1~deb11u1
3.20230214.1
3.20230512.1
3.20230808.1~deb10u1
3.20230808.1~deb11u1
3.20230808.1~deb12u1
3.20230808.1
3.20231114.1~deb10u1
3.20231114.1~deb11u1
3.20231114.1~deb12u1
3.20231114.1
3.20240312.1~deb10u1
3.20240312.1~deb11u1
3.20240312.1~deb12u1
3.20240312.1
3.20240514.1~deb11u1
3.20240514.1~deb12u1
3.20240514.1
3.20240531.1
3.20240531.1+nmu1
3.20240813.1~deb11u1
3.20240813.1~deb12u1
3.20240813.1
3.20240813.2
3.20240910.1~deb11u1
3.20240910.1~deb12u1
3.20240910.1
3.20241112.1~deb11u1
3.20241112.1~deb12u1
3.20241112.1
3.20250211.1~deb11u1
3.20250211.1~deb12u1
3.20250211.1
3.20250512.1~deb11u1
3.20250512.1~deb12u1
3.20250512.1
3.20250812.1~deb11u1
3.20250812.1~deb12u1
3.20250812.1~deb13u1
3.20250812.1
3.20251111.1~deb12u1
3.20251111.1~deb13u1
3.20251111.1
3.20260210.1
3.20260227.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20901.json"