How severe is CVE-2018-14345?

CVE-2018-14345 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-14345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14345?

CVE-2018-14345 affects Sddm Project Sddm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14345?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-14345 published?

CVE-2018-14345 was published on 2018-07-17 and last updated on 2026-06-17.

CVE-2018-14345

CVE-2018-14345 is a high-severity vulnerability in Sddm Project Sddm with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Sddm Project Sddm
Published: 2018-07-17
Last modified: 2026-06-17

Description

An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp.

Frequently asked questions

What is CVE-2018-14345?: An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp.
How severe is CVE-2018-14345?: CVE-2018-14345 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-14345 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14345?: CVE-2018-14345 affects Sddm Project Sddm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14345?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-14345 published?: CVE-2018-14345 was published on 2018-07-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sddm_project:sddm:*:*:*:*:*:*:*:*

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