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Vulnerability details: VCID-taur-mcry-wkax
Vulnerability ID VCID-taur-mcry-wkax
Aliases CVE-2018-4312
Summary Multiple vulnerabilities have been found in WebKitGTK+, the worst of which may lead to arbitrary code execution.
Status Published
Exploitability 2.0
Weighted Severity 7.9
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
epss 0.20038 https://api.first.org/data/v1/epss?cve=CVE-2018-4312
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-4312
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-4312
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-4312
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4312
https://support.apple.com/kb/HT209106
https://support.apple.com/kb/HT209107
https://support.apple.com/kb/HT209109
https://support.apple.com/kb/HT209140
https://support.apple.com/kb/HT209141
cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
CVE-2018-4312 Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1603
CVE-2018-4312 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/45481.html
CVE-2018-4312 https://nvd.nist.gov/vuln/detail/CVE-2018-4312
GLSA-201812-04 https://security.gentoo.org/glsa/201812-04
USN-3781-1 https://usn.ubuntu.com/3781-1/
Data source Exploit-DB
Date added Sept. 25, 2018
Description WebKit - 'WebCore::AXObjectCache::handleMenuItemSelected' Use-After-Free
Ransomware campaign use Known
Source publication date Sept. 25, 2018
Exploit type dos
Platform multiple
Source update date Sept. 25, 2018
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1603
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-4312
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:3.0/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-2018-4312
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 0.95441
EPSS Score 0.20038
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:03:39.006735+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/201812-04 38.0.0