Vulnerability in Mozilla Firefox

CVE-2017-5405

Certain response codes in FTP connections can result in the use of uninitialized values for ports in FTP operations. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

EPSS: 0.026 (83.5th 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:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-5405?
CVE-2017-5405 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-1187. CVSS score: 5.3/10. Published 2018-06-11.
How severe is CVE-2017-5405?
Medium severity. CVSS v3 base score is 5.3 out of 10.