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CVE-2017-5441

26
FAUCET Score

CVE-2017-5441 is a critical use-after-free vulnerability affecting Mozilla Firefox, Firefox ESR, and Thunderbird versions prior to 53, 52.1, and 45.9 respectively. This flaw, rated 9.8 CVSS, allows for a potentially exploitable crash due to improper handling of selection during scroll events. While highly severe with a network attack vector and no user interaction required, there is currently no public exploit code available, and it is not listed on the CISA KEV catalog. Community discussion and media coverage for this vulnerability are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.04%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0304 is in the 77th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:52.1.0-2.el7_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:52.1.0-2.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:52.1.0-1.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:52.1.0-1.el7_3
View patch
mozillavendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox

Vendor Advisories (1)

redhatCVE-2017-5441Important

Mozilla: Use-after-free with selection during scroll events (MFSA 2017-11, MFSA 2017-12)

Apr 19, 2017

References

access.redhat.com / errata/RHSA-2017:1104
Third Party Advisory
access.redhat.com / errata/RHSA-2017:1106
Third Party Advisory
access.redhat.com / errata/RHSA-2017:1201
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
debian.org / security/2017/dsa-3831
Third Party Advisory
mozilla.org / security/advisories/mfsa2017-10
Vendor Advisory
mozilla.org / security/advisories/mfsa2017-11
Vendor Advisory
mozilla.org / security/advisories/mfsa2017-12
Vendor Advisory
mozilla.org / security/advisories/mfsa2017-13
Vendor Advisory
securityfocus.com / bid/97940
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038320
Third Party AdvisoryVDB Entry