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Vulnerability details: VCID-t971-n9fv-37ev
Vulnerability ID VCID-t971-n9fv-37ev
Aliases CVE-2021-30608
Summary Chromium: CVE-2021-30608 Use after free in Web Share
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
epss 0.0037 https://api.first.org/data/v1/epss?cve=CVE-2021-30608
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30608
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30608
archlinux High https://security.archlinux.org/AVG-2336
archlinux High https://security.archlinux.org/AVG-2337
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-30608
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30608
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30608
AVG-2336 https://security.archlinux.org/AVG-2336
AVG-2337 https://security.archlinux.org/AVG-2337
cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2021-30608 https://nvd.nist.gov/vuln/detail/CVE-2021-30608
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-2021-30608
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-2021-30608
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 0.5807
EPSS Score 0.0037
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:24.740558+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.15/community.json 37.0.0