CVE-2018-18513 json
A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature.
published 2019-04-26 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10238
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature. This can be used as a denial-of-service (DOS) attack because Thunderbird reopens the last seen message on restart, triggering the crash again. This vulnerability affects Thunderbird < 60.5.
Patch / fix
- Mozilla Thunderbird 60.5
- thunderbird Debian 14, Debian 13, Debian 12 1:60.5.0-1
debian advisories DEBIAN-CVE-2018-18513
Exploit prediction
1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected products
- Mozilla Thunderbird
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
mozilla.org
/security/advisories/mfsa2019-03/
vendor-advisory
-
bugzilla.mozilla.org
/show_bug.cgi?id=1533300
issue-tracking, vendor-advisory
Sources
- CVE List CVE-2018-18513
- NVD CVE-2018-18513
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.