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Vulnerability details: VCID-3dy5-4e6w-3kgt
Vulnerability ID VCID-3dy5-4e6w-3kgt
Aliases CVE-2017-5427
Summary A non-existent chrome.manifest file will attempt to be loaded during startup from the primary installation directory. If a malicious user with local access puts chrome.manifest and other referenced files in this directory, they will be loaded and activated during startup. This could result in malicious software being added without consent or modification of referenced installed files.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
System Score Found at
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
epss 0.00098 https://api.first.org/data/v1/epss?cve=CVE-2017-5427
cvssv2 4.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 1.9 https://nvd.nist.gov/vuln/detail/CVE-2017-5427
cvssv3 5.5 https://nvd.nist.gov/vuln/detail/CVE-2017-5427
archlinux Critical https://security.archlinux.org/AVG-194
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-05
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-5427
https://bugzilla.mozilla.org/show_bug.cgi?id=1295542
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.mozilla.org/security/advisories/mfsa2017-05/
http://www.securityfocus.com/bid/96692
http://www.securitytracker.com/id/1037966
ASA-201703-3 https://security.archlinux.org/ASA-201703-3
AVG-194 https://security.archlinux.org/AVG-194
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CVE-2017-5427 https://nvd.nist.gov/vuln/detail/CVE-2017-5427
mfsa2017-05 https://www.mozilla.org/en-US/security/advisories/mfsa2017-05
USN-3216-1 https://usn.ubuntu.com/3216-1/
No exploits are available.
Vector: AV:L/AC:M/Au:S/C:P/I:P/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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: AV:L/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5427
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:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5427
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 0.27048
EPSS Score 0.00098
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:16:41.631247+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2017/mfsa2017-05.yml 38.0.0