CVE-2020-10766

lowpriority · track · 22EPSS 0.005 · 40 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (40th) EPSS

CVSS 2.1 · low

Is it mine?

39 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.5

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · secalert@redhat.com USexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-440USCWE-440US

affected products (39)

Products and version ranges known to be affected.

BlackBerry BlackBerryall versionscert_bundDEcpe:/h:rim:blackberry:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Google Android 10all versionscert_bundDEcpe:/o:google:android:10.0
Google Android 11all versionscert_bundDEcpe:/o:google:android:11.0
Google Android 8.0all versionscert_bundDEcpe:/o:google:android:8.0
Google Android 8.1all versionscert_bundDEcpe:/o:google:android:8.1
Google Android 9all versionscert_bundDEcpe:/o:google:android:9
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Linux kernel Kernel≤ before 5.8-rc1enisa_euvdEU
Novell Inc. HPE Helion Openstack≤ 8fstec_bduRU
Novell Inc. SUSE Enterprise Storage≤ 5fstec_bduRU
Novell Inc. SUSE Linux Enterprise High Availability≤ 12 SP3fstec_bduRU
Novell Inc. SUSE Linux Enterprise High Availability≤ 12 SP5fstec_bduRU
Novell Inc. SUSE Linux Enterprise Live Patching≤ 12 SP5fstec_bduRU
Novell Inc. SUSE Linux Enterprise Server for SAP Applications≤ 12 SP3fstec_bduRU
Novell Inc. SUSE Linux Enterprise Server for SAP Applications≤ 12 SP3-BCLfstec_bduRU
Novell Inc. SUSE Linux Enterprise Server for SAP Applications≤ 12 SP3-ESPOSfstec_bduRU
Novell Inc. SUSE Linux Enterprise Server for SAP Applications≤ 12 SP5fstec_bduRU

showing 20 of 39

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1994Google Android Patchday JanuarDeutsch2021-01-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen oder Informationen offenzulegen.
ASB-A-1695057402021-01-01vendor · osvUS
In __speculation_ctrl_update of process.c, there is a possible way to disable Speculative Store Bypass Disable due to a logic error, which allows for side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund NVD CVE.org MITRE

published 2020-09-15modified 2026-06-17

references (28)

External citations — patches, advisories, analysis.

scry

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