CVE-2020-6824
Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the Private Browsing Window but leaves…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the Private Browsing Window but leaves Firefox open. Subsequently, if the user had opened a new Private Browsing Window, revisited the same site, and generated a new password - the generated passwords would have been identical, rather than independent. This vulnerability affects Firefox < 75.
Timeline
ID reserved
By mozilla
- 4 months later
· 4 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Low2.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.27% · top 80% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.8.
Weakness
- Generated passwords may be identical on the same site between separate private browsing sessions
- CWE-384 (opens in a new tab)All about CWE-384 and its CVEs
Affected products
References (2)
- https://www.mozilla.org/security/advisories/mfsa2020-12/ (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1621853 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-6824)Record last updated .