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Vulnerability details: VCID-j1gt-ebpu-aaaa
Vulnerability ID VCID-j1gt-ebpu-aaaa
Aliases CVE-2020-12426
Summary Mozilla developers and community members reported memory safety bugs present in Firefox 77. 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 < 78.
Status Published
Exploitability 0.5
Weighted Severity 8.4
Risk 4.2
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-787 Out-of-bounds Write
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12426.html
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12426.json
epss 0.00384 https://api.first.org/data/v1/epss?cve=CVE-2020-12426
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rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1875243
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12426
cvssv2 9.3 https://nvd.nist.gov/vuln/detail/CVE-2020-12426
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2020-12426
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2020-12426
generic_textual Medium https://ubuntu.com/security/notices/USN-4408-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4408-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-24
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-24/#CVE-2020-12426
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-29
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-29/#CVE-2020-12426
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12426.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12426.json
https://api.first.org/data/v1/epss?cve=CVE-2020-12426
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1608068%2C1609951%2C1631187%2C1637682
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12426
https://security.gentoo.org/glsa/202007-10
https://ubuntu.com/security/notices/USN-4408-1
https://usn.ubuntu.com/usn/usn-4408-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-24/#CVE-2020-12426
https://www.mozilla.org/en-US/security/advisories/mfsa2020-29/#CVE-2020-12426
https://www.mozilla.org/security/advisories/mfsa2020-24/
1875243 https://bugzilla.redhat.com/show_bug.cgi?id=1875243
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:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
CVE-2020-12426 https://nvd.nist.gov/vuln/detail/CVE-2020-12426
mfsa2020-24 https://www.mozilla.org/en-US/security/advisories/mfsa2020-24
mfsa2020-29 https://www.mozilla.org/en-US/security/advisories/mfsa2020-29
USN-4408-1 https://usn.ubuntu.com/4408-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12426.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:M/Au:N/C:C/I:C/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12426
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:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12426
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:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12426
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 0.72781
EPSS Score 0.00384
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.