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Fencer Vulns
medium 6.8

CVE-2021-0146 json

Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow an unauthenticated user to potent…

published 2021-11-17 4 y ago modified 2026-10-08 31 d ago also EUVD-2021-2765

cvss
6.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Patch / fix

  • intel-microcode Ubuntu 18.04 LTS 3.20220510.0ubuntu0.18.04.1
  • intel-microcode Ubuntu 20.04 LTS 3.20220510.0ubuntu0.20.04.1
  • intel-microcode Ubuntu 22.04 LTS 3.20220510.0ubuntu0.22.04.1
  • intel-microcode Ubuntu Pro 16.04 LTS 3.20220510.0ubuntu0.16.04.1+esm1

ubuntu advisories UBUNTU-CVE-2021-0146

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ucode-intel SLES for SAP 12 SP5, SLES 12 SP5 20220207-3.38.1
  • ucode-intel SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES 12 SP4-LTSS +8 more 20220207-13.93.1
  • ucode-intel SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 20220207-10.1
  • ucode-intel SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLES 15 SP1-BCL +3 more 20220207-3.206.1
  • ucode-intel SLES for SAP 15, SLE High Performance Computing 15-LTSS, SLE High Performance Computing 15-ESPOS 20220207-3.70.1

suse advisories SUSE-SU-2022:0576-1SUSE-SU-2022:0575-1SUSE-SU-2022:0574-1SUSE-SU-2022:0541-1SUSE-SU-2022:0502-1

  • ucode-intel openSUSE Tumbleweed 20220207-1.1
  • ucode-intel openSUSE Leap 15.3 20220207-10.1

opensuse advisories openSUSE-SU-2024:11840-1openSUSE-SU-2022:0574-1

  • intel-ucode Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 20220207-r0

alpine advisories ALPINE-CVE-2021-0146

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-0146 updated cvss 7.1

hw: INTEL-SA-00528

  • Red Hat Enterprise Linux 6 microcode_ctl
    affected: no fix available
  • Red Hat Enterprise Linux 7 microcode_ctl Red Hat Enterprise Linux 8 microcode_ctl
    affected: no fix planned “Will not fix”
  • Red Hat Virtualization 4 redhat-virtualization-host-image-update
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-122-01 updated cvss 6.8

Mitsubishi Electric Factory Automation Products

  • Mitsubishi Electric MELIPC MI1002-W Mitsubishi Electric MELIPC MI2012-W Mitsubishi Electric MELIPC MI3315G-W Mitsubishi Electric MELIPC MI3321G-W Mitsubishi Electric MELIPC MI5122-VM Mitsubishi Electric MELSEC iQ-R R102WCPU-W
    +4 more products
    Mitsubishi Electric MELSEC Q Q24DHCCPU-LS Mitsubishi Electric MELSEC Q Q24DHCCPU-V Mitsubishi Electric MELSEC Q Q24DHCCPU-VG Mitsubishi Electric MELSEC Q Q26DHCCPU-LS
    affected: vendor fix intel.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
31 d ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • n/a Intel(R) processors which

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.