HIGH

CVE-2017-5379

Q: Is CVE-2017-5379 actively exploited?

Active exploitation of CVE-2017-5379 has not been confirmed. Its EPSS score was 1.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-5379?

CVE-2017-5379 has a CVSS v3 base score of 7.5 (HIGH severity).

CVSS v3

7.5

HIGH

EPSS Score

1.7 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2017-5379 yet.

Full record on NVD

Description

Use-after-free vulnerability in Web Animations when interacting with cycle collection found through fuzzing. This vulnerability affects Firefox < 51.

Technical details

Published: 2018-06-11

Frequently asked questions

What is CVE-2017-5379?

Use-after-free vulnerability in Web Animations when interacting with cycle collection found through fuzzing. This vulnerability affects Firefox < 51.

Is CVE-2017-5379 actively exploited?

Active exploitation of CVE-2017-5379 has not been confirmed. Its EPSS score was 1.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-5379?

CVE-2017-5379 has a CVSS v3 base score of 7.5 (HIGH severity).

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