No exploitation reportedFix available

CVE-2017-5468

Q: Is CVE-2017-5468 actively exploited?

Active exploitation of CVE-2017-5468 has not been confirmed. Its EPSS score was 2.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-5468?

CVE-2017-5468 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

No exploitation reported by the sources we read.

Published2018-06-11
Fixed in53.0
WeaknessCWE-665

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue with incorrect ownership model of "privateBrowsing" information exposed through developer tools. This can result in a non-exploitable crash when manually triggered during debugging. This vulnerability affects Firefox < 53.

Timeline

dates in UTC

2018-06-1121:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-5468?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-5468?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Mozilla firefox

Branch	Affected	Fixed in	Source
53.0	< 53.0	53.0	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Mozilla firefox to 53.0

Advisories and patches

bugzilla.mozilla.orgPatch · Vendor Advisory
www.mozilla.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.1read 2026-10-23
NVDCVSS 2.06.4read 2026-10-23
NVDweakness (CWE)CWE-665read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published: 2018-06-11
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-5468?

Is CVE-2017-5468 actively exploited?

Active exploitation of CVE-2017-5468 has not been confirmed. Its EPSS score was 2.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-5468?

CVE-2017-5468 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

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