System	Score	Found at
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
epss	0.00276	https://api.first.org/data/v1/epss?cve=CVE-2021-30543
cvssv2	6.8	https://nvd.nist.gov/vuln/detail/CVE-2021-30543
cvssv3.1	8.8	https://nvd.nist.gov/vuln/detail/CVE-2021-30543
archlinux	High	https://security.archlinux.org/AVG-1990
archlinux	High	https://security.archlinux.org/AVG-1991

Reference id	Reference type	URL
		https://api.first.org/data/v1/epss?cve=CVE-2021-30543
		https://crbug.com/1203607
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30543
		https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKQDE3PWDKASAPSUJYMOQGL73L3YQRFS/
990079		https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990079
ASA-202106-2		https://security.archlinux.org/ASA-202106-2
AVG-1990		https://security.archlinux.org/AVG-1990
AVG-1991		https://security.archlinux.org/AVG-1991
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:*:*:*:*:*:*:*
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-2021-30543		https://nvd.nist.gov/vuln/detail/CVE-2021-30543

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-2021-30543

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-2021-30543

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

Percentile	0.50779
EPSS Score	0.00276
Published At	July 30, 2025, 12:55 p.m.

Date	Actor	Action	Source	VulnerableCode Version
2025-07-31T11:36:27.116622+00:00	Arch Linux Importer	Import	https://security.archlinux.org/AVG-1991	37.0.0