Out-of-bounds Read in Mozilla Firefox

CVE-2020-12425

Due to confusion processing a hyphen character in Date.parse(), a one-byte out of bounds read could have occurred, leading to potential information disclosure. This vulnerability affects Firefox < 78.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.016 (74.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.5% 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-2020-12425: held from 0.014 to 0.016.

EPSS over last 30 days · oldest: 0.014 · newest: 0.016 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-12425?
CVE-2020-12425 is a medium-severity vulnerability in Mozilla Firefox, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2020-07-09.
How severe is CVE-2020-12425?
Medium severity. CVSS v3 base score is 6.5 out of 10.