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Vulnerability details: VCID-aeeg-9d4b-aaaf
Vulnerability ID VCID-aeeg-9d4b-aaaf
Aliases CVE-2020-6826
Summary Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in Firefox 74. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 75.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-787 Out-of-bounds Write
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-6826.html
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6826.json
epss 0.00205 https://api.first.org/data/v1/epss?cve=CVE-2020-6826
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epss 0.00205 https://api.first.org/data/v1/epss?cve=CVE-2020-6826
epss 0.00205 https://api.first.org/data/v1/epss?cve=CVE-2020-6826
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epss 0.00482 https://api.first.org/data/v1/epss?cve=CVE-2020-6826
epss 0.01633 https://api.first.org/data/v1/epss?cve=CVE-2020-6826
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1821696
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6826
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-6826
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-6826
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-6826
archlinux Critical https://security.archlinux.org/AVG-1127
generic_textual Medium https://ubuntu.com/security/notices/USN-4323-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4323-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-12
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-12/#CVE-2020-6826
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-6826.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6826.json
https://api.first.org/data/v1/epss?cve=CVE-2020-6826
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1613009%2C1613195%2C1616734%2C1617488%2C1619229%2C1620719%2C1624897
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6826
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://ubuntu.com/security/notices/USN-4323-1
https://usn.ubuntu.com/usn/usn-4323-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-12/#CVE-2020-6826
https://www.mozilla.org/security/advisories/mfsa2020-12/
1821696 https://bugzilla.redhat.com/show_bug.cgi?id=1821696
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-2020-6826 https://nvd.nist.gov/vuln/detail/CVE-2020-6826
GLSA-202004-11 https://security.gentoo.org/glsa/202004-11
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6826.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:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H 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:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6826
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6826
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6826
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 0.58827
EPSS Score 0.00205
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.