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Vulnerability details: VCID-9695-um8s-a3bn
Vulnerability ID VCID-9695-um8s-a3bn
Aliases CVE-2021-21173
Summary Side-channel information leakage in Network Internals in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-203 Observable Discrepancy
System Score Found at
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
epss 0.01156 https://api.first.org/data/v1/epss?cve=CVE-2021-21173
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2021-21173
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-21173
archlinux High https://security.archlinux.org/AVG-1631
archlinux High https://security.archlinux.org/AVG-1633
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-21173
https://crbug.com/1154250
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21159
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21160
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21161
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21162
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21163
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21165
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21166
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21167
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21168
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21169
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21170
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21171
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21172
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21173
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21174
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21175
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21176
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21177
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21178
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21179
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21180
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21181
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21182
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21183
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21184
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21185
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21186
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21187
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21188
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21189
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21190
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21191
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21192
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21193
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21194
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21195
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21196
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21197
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21198
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21199
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21200
ASA-202103-19 https://security.archlinux.org/ASA-202103-19
AVG-1631 https://security.archlinux.org/AVG-1631
AVG-1633 https://security.archlinux.org/AVG-1633
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2021-21173 https://nvd.nist.gov/vuln/detail/CVE-2021-21173
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-21173
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:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-21173
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 0.77681
EPSS Score 0.01156
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:40:02.023491+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.16/community.json 37.0.0