Is CVE-2017-9604 in the CISA KEV catalog?

No. CVE-2017-9604 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-9604?

CVE-2017-9604 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-9604?

CVE-2017-9604 has an EPSS score of 1.29% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-9604?

Upgrade kf5-messagelib on debian 11 to 4:16.04.3-3 or later.

CVE & CISA-KEV Catalog

CVE-2017-9604

HIGH

7.5

CVSS v3

NVD

Description

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.

CWE-311

How to fix

Remediation Available

kf5-messagelibDebian

Fixed in:4:16.04.3-3CVE-2017-9604

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.29%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-311 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-27944	Critical	9.8	22%	-	Fix
CVE-2026-34486	High	7.5	16%	-	-
CVE-2019-11367	Critical	9.8	2.8%	-	Fix
CVE-2017-8221	High	7.5	2.7%	-	-
CVE-2016-10593	High	8.1	2.3%	-	-
CVE-2018-10698	Critical	9.8	2.3%	-	-

Embed a live status badge for CVE-2017-9604

Markdown

[![CVE-2017-9604](https://tridentstack.com/cve/badge/CVE-2017-9604.svg)](https://tridentstack.com/cve/CVE-2017-9604)

HTML

<a href="https://tridentstack.com/cve/CVE-2017-9604"><img src="https://tridentstack.com/cve/badge/CVE-2017-9604.svg" alt="CVE-2017-9604"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.