Information Exposure Affecting thunderbird package, versions <1:52.9.0-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18319048
- published26 Jul 2026
- disclosed18 Oct 2018
Introduced: 18 Oct 2018
CVE-2018-12372 (opens in a new tab)How to fix?
Upgrade Echo:latest thunderbird to version 1:52.9.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
Decrypted S/MIME parts, when included in HTML crafted for an attack, can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.
References
- https://advisory.echohq.com/cve/CVE-2018-12372
- http://www.securityfocus.com/bid/104613
- https://access.redhat.com/errata/RHSA-2018:2251
- https://access.redhat.com/errata/RHSA-2018:2252
- https://bugzilla.mozilla.org/show_bug.cgi?id=1419417
- https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html
- https://security.gentoo.org/glsa/201811-13
- https://usn.ubuntu.com/3714-1/
- https://www.debian.org/security/2018/dsa-4244
- https://www.mozilla.org/security/advisories/mfsa2018-18/