CVE-2016-4842 json
Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.
published 2017-04-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5824
- cvss
- 4.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.
Exploit prediction
1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
support.cybozu.com
/ja-jp/article/9606
vendor-advisory
-
jvndb.jvn.jp
/en/contents/2016/JVNDB-2016-000136.html
third-party-advisory, vdb-entry
-
jvn.jp
/en/jp/JVN02576342/index.html
third-party-advisory, vdb-entry
-
securityfocus.com
/bid/92460
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2016-4842
- NVD CVE-2016-4842
Fencer Intel 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.