What is CVE-2017-9604?

CVE-2017-9604 is a high-severity vulnerability in KDE, classified under Missing Encryption of Sensitive Data. CVSS score: 7.5/10. Published 2017-06-13.

How severe is CVE-2017-9604?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in KDE

CVE-2017-9604

KDE kmail before 5.5.2 and messagelib before 5.5.2, as distributed in KDE Applications before 17.04.2, do not ensure that a plugin's sign/encrypt action occurs during use of the Send Later feature, which allows remote attackers to obtain sensitive information by sniffing the network.

Published 2017-06-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

KDE — versions 17.04
KDE Kmail
KDE Messagelib

Weakness classification (CWE)

CWE-311 — Missing Encryption of Sensitive Data

References

commits.kde.org/messagelib/c54706e990bbd6498e7b1597ec7900bc809e8197 (Patch, Mailing List, Tool Signature)
commits.kde.org/kmail/78c5552be2f00a4ac25bd77ca39386522fca70a8 (Patch, Mailing List, Tool Signature)

Frequently asked questions

What is CVE-2017-9604?: CVE-2017-9604 is a high-severity vulnerability in KDE, classified under Missing Encryption of Sensitive Data. CVSS score: 7.5/10. Published 2017-06-13.
How severe is CVE-2017-9604?: High severity. CVSS v3 base score is 7.5 out of 10.