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Vulnerability details: VCID-hvj7-bwkf-f3em
Vulnerability ID VCID-hvj7-bwkf-f3em
Aliases CVE-2020-6829
Summary When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-327 Use of a Broken or Risky Cryptographic Algorithm
System Score Found at
cvssv3 4.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6829.json
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-36
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-39
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6829.json
https://api.first.org/data/v1/epss?cve=CVE-2020-6829
https://bugzilla.mozilla.org/show_bug.cgi?id=1631583
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6829
https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
https://www.mozilla.org/security/advisories/mfsa2020-36/
https://www.mozilla.org/security/advisories/mfsa2020-39/
1826187 https://bugzilla.redhat.com/show_bug.cgi?id=1826187
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:-:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:-:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*
CVE-2020-6829 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
mfsa2020-36 https://www.mozilla.org/en-US/security/advisories/mfsa2020-36
mfsa2020-39 https://www.mozilla.org/en-US/security/advisories/mfsa2020-39
RHSA-2020:4076 https://access.redhat.com/errata/RHSA-2020:4076
RHSA-2021:0538 https://access.redhat.com/errata/RHSA-2021:0538
RHSA-2021:0949 https://access.redhat.com/errata/RHSA-2021:0949
USN-4455-1 https://usn.ubuntu.com/4455-1/
USN-4474-1 https://usn.ubuntu.com/4474-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6829.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6829
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6829
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.45219
EPSS Score 0.00225
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:40.952261+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2020/mfsa2020-36.yml 37.0.0