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Vulnerability details: VCID-1mr7-zws8-aaam
Vulnerability ID VCID-1mr7-zws8-aaam
Aliases CVE-2021-29975
Summary Through a series of DOM manipulations, a message, over which the attacker had control of the text but not HTML or formatting, could be overlaid on top of another domain (with the new domain correctly shown in the address bar) resulting in possible user confusion. This vulnerability affects Firefox < 90.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-29975.html
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00165 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
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epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
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epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
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epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.00393 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
epss 0.0082 https://api.first.org/data/v1/epss?cve=CVE-2021-29975
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29975
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2021-29975
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-29975
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-29975
archlinux High https://security.archlinux.org/AVG-2148
generic_textual Medium https://ubuntu.com/security/notices/USN-5011-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2021-28
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/#CVE-2021-29975
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-29975.html
https://api.first.org/data/v1/epss?cve=CVE-2021-29975
https://bugzilla.mozilla.org/show_bug.cgi?id=1713259
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29975
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/202202-03
https://ubuntu.com/security/notices/USN-5011-1
https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/#CVE-2021-29975
https://www.mozilla.org/security/advisories/mfsa2021-28/
ASA-202107-20 https://security.archlinux.org/ASA-202107-20
AVG-2148 https://security.archlinux.org/AVG-2148
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-2021-29975 https://nvd.nist.gov/vuln/detail/CVE-2021-29975
mfsa2021-28 https://www.mozilla.org/en-US/security/advisories/mfsa2021-28
USN-5011-1 https://usn.ubuntu.com/5011-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-29975
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:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-29975
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:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-29975
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 0.49013
EPSS Score 0.00133
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.