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Vulnerability details: VCID-ruzh-v6hz-aaan
Vulnerability ID VCID-ruzh-v6hz-aaan
Aliases CVE-2021-30553
Summary Use after free in Network service in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30553.html
epss 0.00471 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
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epss 0.00471 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
epss 0.00471 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
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epss 0.00604 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
epss 0.00604 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
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epss 0.00609 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
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epss 0.00613 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
epss 0.00808 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
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epss 0.00808 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
epss 0.00808 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
epss 0.00808 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
epss 0.01555 https://api.first.org/data/v1/epss?cve=CVE-2021-30553
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30553
cvssv3.1 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30553
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30553
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30553
archlinux Critical https://security.archlinux.org/AVG-2057
archlinux Critical https://security.archlinux.org/AVG-2058
archlinux Critical https://security.archlinux.org/AVG-2059
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30553.html
https://api.first.org/data/v1/epss?cve=CVE-2021-30553
https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html
https://crbug.com/1209769
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30553
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
https://security.gentoo.org/glsa/202107-06
990079 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990079
ASA-202106-31 https://security.archlinux.org/ASA-202106-31
ASA-202106-32 https://security.archlinux.org/ASA-202106-32
ASA-202106-45 https://security.archlinux.org/ASA-202106-45
AVG-2057 https://security.archlinux.org/AVG-2057
AVG-2058 https://security.archlinux.org/AVG-2058
AVG-2059 https://security.archlinux.org/AVG-2059
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: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-2021-30553 https://nvd.nist.gov/vuln/detail/CVE-2021-30553
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://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:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30553
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-2021-30553
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-2021-30553
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 0.61789
EPSS Score 0.00471
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.