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Vulnerability details: VCID-b6zs-hjbz-mugn
Vulnerability ID VCID-b6zs-hjbz-mugn
Aliases CVE-2021-45483
Summary webkitgtk: use-after-free in WebCore::Frame::page
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45483.json
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2021-45483
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45483.json
https://api.first.org/data/v1/epss?cve=CVE-2021-45483
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30818
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30823
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30846
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30851
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30884
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30888
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30889
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42762
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45481
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45483
2040331 https://bugzilla.redhat.com/show_bug.cgi?id=2040331
RHSA-2022:1777 https://access.redhat.com/errata/RHSA-2022:1777
RHSA-2025:10364 https://access.redhat.com/errata/RHSA-2025:10364
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45483.json
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 0.1353
EPSS Score 0.00044
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T14:00:39.818273+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45483.json 38.0.0