Vulnerability in Mozilla Firefox

CVE-2017-5462

A flaw in DRBG number generation within the Network Security Services (NSS) library where the internal state V does not correctly carry bits over. The NSS library has been updated to fix this issue to address this issue and Firefox ESR 52.1 has been updated with NSS version 3.28.4. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

EPSS: 0.026 (84.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-5462?
CVE-2017-5462 is a medium-severity vulnerability in Mozilla Firefox, classified under Incorrect Calculation. CVSS score: 5.3/10. Published 2018-06-11.
How severe is CVE-2017-5462?
Medium severity. CVSS v3 base score is 5.3 out of 10.