Vulnerability in Mozilla Firefox

CVE-2017-5401

A crash triggerable by web content in which an "ErrorResult" references unassigned memory due to a logic error. The resulting crash may be exploitable. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.030 (87.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-5401: held from 0.030 to 0.030.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: -0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-5401?
CVE-2017-5401 is a critical-severity vulnerability in Mozilla Firefox, classified under CWE-388. CVSS score: 9.8/10. Published 2018-06-11.
How severe is CVE-2017-5401?
Critical severity. CVSS v3 base score is 9.8 out of 10.