Improper input validation in Mozilla Firefox

CVE-2017-5449

A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.026 (83.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-5449?
CVE-2017-5449 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-06-11.
How severe is CVE-2017-5449?
High severity. CVSS v3 base score is 7.5 out of 10.