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CVE-2017-9604· NVD / CVE Program· CNA mitre

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/en

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.

HighCVSS 7.5 · v3.0—No exploit Fix available
Published
Jun 13, 2017
Updated
Jun 16, 2026
EPSS
1.3% · 69th percentile
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Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

Affected systems

VendorProduct
kdekmail
kdemessagelib
kdekde

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • kde kmailup to 5.5.1 inclusive
  • kde messagelibup to 5.5.1 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12kf5-messagelibbefore 4:16.04.3-34:16.04.3-3
SUSE:Package Hub 12 SP2kdepimbefore 16.08.2-5.216.08.2-5.2
SUSE:Package Hub 12 SP2messagelibbefore 16.08.2-5.116.08.2-5.1

Same product

kde: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-7967KMail since version 5.3.0 used a QWebEngine based viewer that had JavaScript enabled.
    33Monitor
  • CVE-2016-7966Through a malicious URL that contained a quote character it was possible to inject HTML code in KMail's plaintext viewer.
    30Monitor
  • CVE-2020-15954KDE KMail 19.12.3 (aka 5.13.3) engages in unencrypted POP3 communication during times when the UI indicates that encryption is in use.
    26Monitor
  • CVE-2020-11880An issue was discovered in KDE KMail before 19.12.3.
    26Monitor
  • CVE-2016-7968KMail since version 5.3.0 used a QWebEngine based viewer that had JavaScript enabled.
    26Monitor
  • CVE-2014-8878KDE KMail does not encrypt attachments in emails when "automatic encryption" is enabled, which allows remote attackers to obtain sensitive i
    23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:kf5-messagelib4:16.04.3-3 · Debian:12Package registry (OSV)
suse:kdepim16.08.2-5.2 · SUSE:Package Hub 12 SP2Package registry (OSV)
suse:messagelib16.08.2-5.1 · SUSE:Package Hub 12 SP2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-311 · Missing Encryption of Sensitive Data

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records