Improper input validation in Mozilla Thunderbird

CVE-2018-5161

Crafted message headers can cause a Thunderbird process to hang on receiving the message. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.

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

EPSS: 0.021 (79.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-5161?
CVE-2018-5161 is a medium-severity vulnerability in Mozilla Thunderbird, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2018-06-11.
How severe is CVE-2018-5161?
Medium severity. CVSS v3 base score is 4.3 out of 10.