CVE-2020-12400

lowpriority · track · 19OT risk · elevatedEPSS 0.003 · 19 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.27% (19th) EPSS

CVSS 1.2 · low

Is it mine?

32 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

When converting coordinates from projective to affine, the modular inversion was not performed in constant time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

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 · 1.2–5.5

v2.01.2lowAV:L/AC:H/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 1.9 · impact 2.9

v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1 · impact 3.6

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

v3.14.3mediumCVSS:3.1/AV:L/AC:H/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-203USprimaryCWE-327US

affected products (32)

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 Session Managerall versionscert_bundDEcpe:/a:avaya:session_manager:-
Avaya Aura System Managerall versionscert_bundDEcpe:/a:avaya:aura_system_manager:-
Avaya Web License Managerall versionscert_bundDEcpe:/a:avaya:web_license_manager:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
IBM InfoSphere Guardiumall versionscert_bundDEcpe:/a:ibm:infosphere_guardium:-
Mozilla NSS <3.55all versionscert_bundDE
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Xerox FreeFlow Print Server 9all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:9
Mozilla nss< 3.55cert_bundDE
Mozilla Firefoxunspecified → 80enisa_euvdEU
Mozilla Firefox for Androidunspecified → 80enisa_euvdEU
Canonical Ltd. Ubuntu≤ 20.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 20.10fstec_bduRU
Canonical Ltd. Ubuntu≤ 14.04 ESMfstec_bduRU

showing 20 of 32

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1831Mozilla NSS: Schwachstelle ermöglicht nicht spezifizierten AngriffDeutsch2020-07-27csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in Mozilla NSS ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
WID-SEC-W-2024-1591Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-07-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2020-10-08modified 2026-08-19

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Related entries.

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+881 more

references (43)

External citations — patches, advisories, analysis.

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