CVE-2018-7884
CVE-2018-7884 is a high-severity vulnerability in Displaylink Core Software Cleaner with a CVSS 3.x base score of 7.8. 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-426.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 9.3
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-426
- Affected product: Displaylink Core Software Cleaner
- Published:
- Last modified:
Description
An issue was discovered in DisplayLink Core Software Cleaner Application 8.2.1956. When the drivers are updated to a newer version, the product launches a process as SYSTEM to uninstall the old version: cl_1956.exe is run as SYSTEM on the %systemroot%\Temp folder, where any user can write a DLL (e.g., version.dll) to perform DLL Hijacking and elevate privileges to SYSTEM.
Frequently asked questions
- What is CVE-2018-7884?
- An issue was discovered in DisplayLink Core Software Cleaner Application 8.2.1956. When the drivers are updated to a newer version, the product launches a process as SYSTEM to uninstall the old version: cl_1956.exe is run as SYSTEM on the %systemroot%\Temp folder, where any user can write a DLL (e.g., version.dll) to perform DLL Hijacking and elevate privileges to SYSTEM.
- How severe is CVE-2018-7884?
- CVE-2018-7884 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-7884 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-7884?
- CVE-2018-7884 affects Displaylink Core Software Cleaner. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-7884?
- 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-2018-7884 published?
- CVE-2018-7884 was published on 2018-06-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:displaylink:core_software_cleaner:8.2.1956:*:*:*:*:*:*:*
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