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Fencer Vulns
medium 5.5

CVE-2020-8694 json

Insufficient access control in the Linux kernel driver for some Intel(R) Processors may allow an authenticated user to potentially enable i…

published 2020-11-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29542

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

Insufficient access control in the Linux kernel driver for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 5.9.9-1

debian advisories DEBIAN-CVE-2020-8694

  • linux Ubuntu 16.04 LTS 4.4.0-194.226
  • linux Ubuntu 18.04 LTS 4.15.0-123.126
  • linux Ubuntu 20.04 LTS 5.4.0-53.59
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1087.100~16.04.1
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1029.31
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-123.126~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.3.0-69.65
  • linux-oem Ubuntu 18.04 LTS 4.15.0-1101.112

ubuntu advisories UBUNTU-CVE-2020-8694

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

  • docker-stable SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +12 more 24.0.9_ce-150000.1.25.1
  • rootlesskit SLE Module for Containers 15 SP5, SLE Module for Containers 15 SP4, openSUSE Leap 15.5 +1 more 1.1.1-150000.1.3.3
  • docker SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES for SAP 15 SP1 +19 more 24.0.7_ce-150000.190.4
  • runc SLE Module for Containers 12 1.1.10-16.40.1
  • docker SLE Module for Containers 12 24.0.7_ce-98.103.1
  • containerd SLE Module for Containers 12 1.7.8-16.88.1
  • kernel-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.38.1
  • kernel-syms-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.38.1

suse advisories SUSE-SU-2025:03545-1SUSE-SU-2025:03540-1SUSE-SU-2023:4936-1SUSE-SU-2023:4625-1SUSE-SU-2020:3715-1SUSE-SU-2020:3713-1

  • spectre-meltdown-checker openSUSE Tumbleweed 26.36.0602723-1.1
  • docker-stable openSUSE Tumbleweed 24.0.9_ce-15.1
  • kernel-source openSUSE Tumbleweed 5.14.6-1.4
  • docker openSUSE Tumbleweed 24.0.7_ce-2.1
  • kernel-source openSUSE Tumbleweed 6.6.17-1.1
  • kernel-rt openSUSE Leap 15.2 5.3.18-lp152.3.5.1
  • kernel-syms-rt openSUSE Leap 15.2 5.3.18-lp152.3.5.1
  • kernel-rt_debug openSUSE Leap 15.2 5.3.18-lp152.3.5.1

opensuse advisories openSUSE-SU-2026:11242-1openSUSE-SU-2025:15589-1openSUSE-SU-2024:10728-1openSUSE-SU-2024:13469-1openSUSE-SU-2024:13704-1openSUSE-SU-2021:0242-1

  • intel-ucode Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 20201110-r0
  • intel-ucode Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 20201112-r0

alpine advisories ALPINE-CVE-2020-8694

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

  • linux-hardened Arch Linux 5.9.8.a-1
  • linux-zen Arch Linux 5.9.8.zen1-1
  • linux Arch Linux 5.9.8.arch1-1
  • linux-lts Arch Linux 5.4.77-1

arch linux advisories AVG-1269AVG-1273AVG-1274AVG-1275

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-2020-8694 updated cvss 5.5

kernel: Insufficient access control vulnerability in PowerCap Framework

  • Red Hat Enterprise Linux 7 kernel, bpftool, kernel-rt, kernel-rt-kvm, kernel-rt-trace, kernel-rt-debug-kvm, +1 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +4 more Red Hat Enterprise Linux 8 microcode_ctl
    not affected: vulnerable code not present

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-22-132-05 updated cvss 5.6

Siemens Industrial PCs and CNC devices

  • Siemens SIMATIC Field PG M5 <BIOS_V22.01.08
    affected: fixed in V22.01.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC Field PG M6 <V26.01.08
    affected: fixed in V26.01.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC427E (incl. SIPLUS variants) <BIOS_V21.01.15 Siemens SIMATIC IPC477E <BIOS_V21.01.15 Siemens SIMATIC IPC477E Pro <BIOS_V21.01.15
    affected: fixed in V21.01.15, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC527G <BIOS_V1.4.0
    affected: fixed in V1.4.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC547G <R1.30.0
    affected: vendor fix, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC627E <BIOS_V25.02.08 Siemens SIMATIC IPC647E <BIOS_V25.02.08 Siemens SIMATIC IPC677E <BIOS_V25.02.08 Siemens SIMATIC IPC847E <BIOS_V25.02.08
    affected: fixed in V25.02.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC ITP1000 <BIOS_V23.01.08
    affected: fixed in V23.01.08, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a Intel(R) Processors

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.