5.3

CVE-2020-6829: mozilla firefox

CVSS: 5.3v3.1MediumModified
AliasesALPINE-CVE-2020-6829UBUNTU-CVE-2020-6829DEBIAN-CVE-2020-6829
Published 28-10-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-6829 is a medium (CVSS 5.3) vulnerability in mozilla firefox. EPSS estimates a 1.48% chance of exploitation in the next 30 days, higher than 73.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.48%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 9
DLA-2388-1DLA-3327-1MGASA-2020-0318OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:11058-1OPENSUSE-SU-2024:14572-1

Timeline

  1. 28-10-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.48%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

+0.01 pp

From 1.47% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.48%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Mozilla3 products
Ubuntu2 products
  • firefox< 80.0+build2-0ubuntu0.16.04.1 | < 80.0+build2-0ubuntu0.18.04.1 | < 80.0+build2-0ubuntu0.20.04.1
  • nss< 2:3.28.4-0ubuntu0.14.04.5+esm7 | < 2:3.28.4-0ubuntu0.16.04.13 | < 2:3.35-2ubuntu2.11 | < 2:3.49.1-1ubuntu1.4
Alpine1 product
  • nss< 3.55-r0
Debian1 product
  • nss< 2:3.55-1

4 vendors · 7 products

References

12 links
Show all 12 references