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Vulnerability details: VCID-5dzc-dujk-97de
Vulnerability ID VCID-5dzc-dujk-97de
Aliases CVE-2020-6824
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-384 Session Fixation
System Score Found at
cvssv3 2.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6824.json
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2020-6824
cvssv3.1 2 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 1.9 https://nvd.nist.gov/vuln/detail/CVE-2020-6824
cvssv3.1 2.8 https://nvd.nist.gov/vuln/detail/CVE-2020-6824
archlinux Critical https://security.archlinux.org/AVG-1127
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-12
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6824.json
https://api.first.org/data/v1/epss?cve=CVE-2020-6824
https://bugzilla.mozilla.org/show_bug.cgi?id=1621853
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.mozilla.org/security/advisories/mfsa2020-12/
1821695 https://bugzilla.redhat.com/show_bug.cgi?id=1821695
ASA-202004-8 https://security.archlinux.org/ASA-202004-8
AVG-1127 https://security.archlinux.org/AVG-1127
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:*:*:*:*:*:*:*:*
CVE-2020-6824 https://nvd.nist.gov/vuln/detail/CVE-2020-6824
mfsa2020-12 https://www.mozilla.org/en-US/security/advisories/mfsa2020-12
USN-4323-1 https://usn.ubuntu.com/4323-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6824.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: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:L/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6824
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:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6824
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 0.32928
EPSS Score 0.00127
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:39.748256+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2020/mfsa2020-12.yml 37.0.0