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Vulnerability · NVD

CVE-2018-18509

MEDIUM 5.3

A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1.

Attack vector : Network No privileges required No user interaction
Show raw CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS 1.68% above median percentile 74.7%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Vulnerable CPE configurations (1)
Vendor Product Versions
mozilla thunderbird
All platforms (wildcard)
<60.5.1
View on NVD ↗ Advisory · bugzilla.mozilla.org Advisory · www.mozilla.org