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 update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-9604 is rated Moderate Risk (42.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.16%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-9604

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-08 0.26% 0.16% -0.10%
2 2025-11-21 0.16% 0.26% +0.10%
3 2025-11-18 — 0.16% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-9604

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-9604

OS Trackers for CVE-2017-9604

vendor priority summary link
debian not yet assigned CVE-2017-9604 not yet assigned priority: Debian including 1 source packages (kf5-messagelib), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. https://security-tracker.debian.org/tracker/CVE-2017-9604
redhat low — https://access.redhat.com/security/cve/CVE-2017-9604
suse medium — https://www.suse.com/security/cve/CVE-2017-9604/
ubuntu medium CVE-2017-9604 medium priority: Ubuntu including 2 source packages (kdepim, kf5-messagelib), 12 status rows across 6 suites (artful, trusty, upstream, xenial, yakkety, zesty): ignored 4, DNE 3, released 3, needed 2. https://ubuntu.com/security/CVE-2017-9604

Affected software / configurations for CVE-2017-9604

Vendor Product Version Raw CPE
kde kmail <= 5.5.1 cpe:2.3:a:kde:kmail:*:*:*:*:*:*:*:*
kde messagelib <= 5.5.1 cpe:2.3:a:kde:messagelib:*:*:*:*:*:*:*:*

References for CVE-2017-9604

cvelogic Threat Intelligence