CVE-2020-28368

lowpriority · track · 18OT risk · elevatedEPSS 0.004 · 34 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.40% (34th) EPSS

CVSS 2.1 · low

Is it mine?

28 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.

cvss

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

4.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–4.4

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

v3.14.4mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 0.8 · impact 3.6

v3.14.1mediumCVSS:3.1/AV:L/AC:L/PR:H/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-862USprimary

affected products (28)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Avaya Aura Application Enablement Servicesall versionscert_bundDEcpe:/a:avaya:aura_application_enablement_services:-
Avaya Aura Communication Managerall versionscert_bundDEcpe:/a:avaya:communication_manager:-
Avaya Aura Device Servicesall versionscert_bundDEcpe:/a:avaya:aura_device_services:-
Avaya Aura Experience Portalall versionscert_bundDEcpe:/a:avaya:aura_experience_portal:-
Avaya Aura Session Managerall versionscert_bundDEcpe:/a:avaya:session_manager:-
Avaya Aura System Managerall versionscert_bundDEcpe:/a:avaya:aura_system_manager:-
Avaya Breeze Platformall versionscert_bundDEcpe:/a:avaya:breeze_platform:-
Avaya CMSall versionscert_bundDEcpe:/a:avaya:call_management_system_server:-
Avaya Session Border Controllerall versionscert_bundDEcpe:/h:avaya:session_border_controller:-
Citrix Systems Hypervisorall versionscert_bundDEcpe:/o:citrix:hypervisor:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell BIOSall versionscert_bundDEcpe:/h:dell:bios:latitude
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
HPE ProLiantall versionscert_bundDEcpe:/h:hp:proliant:-
Intel Prozessorall versionscert_bundDEcpe:/h:intel:intel_prozessor:-
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Open Source Xenall versionscert_bundDEcpe:/o:xen:xen:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-

showing 20 of 28

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0999Intel Prozessoren: Mehrere Schwachstellen ermöglichen Offenlegung von InformationenDeutsch2020-11-10csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Intel Prozessoren ausnutzen, um Informationen offenzulegen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2020-11-10modified 2026-06-17

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+11474 more

references (33)

External citations — patches, advisories, analysis.

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