Search for vulnerabilities
Vulnerability details: VCID-kzte-2heg-p7ew
Vulnerability ID VCID-kzte-2heg-p7ew
Aliases CVE-2021-30509
Summary multiple issues
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
epss 0.00273 https://api.first.org/data/v1/epss?cve=CVE-2021-30509
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30509
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30509
archlinux High https://security.archlinux.org/AVG-1936
archlinux High https://security.archlinux.org/AVG-1937
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-30509
https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop.html
https://crbug.com/1196309
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30506
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30507
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30508
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30509
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30510
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30511
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30512
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30513
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30514
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30515
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30516
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30517
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30518
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30519
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30520
ASA-202105-7 https://security.archlinux.org/ASA-202105-7
ASA-202105-8 https://security.archlinux.org/ASA-202105-8
AVG-1936 https://security.archlinux.org/AVG-1936
AVG-1937 https://security.archlinux.org/AVG-1937
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-2021-30509 https://nvd.nist.gov/vuln/detail/CVE-2021-30509
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30509
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-2021-30509
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 0.50516
EPSS Score 0.00273
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T11:36:31.121120+00:00 Arch Linux Importer Import https://security.archlinux.org/AVG-1937 37.0.0