How severe is CVE-2018-18519?

CVE-2018-18519 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-2018-18519 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18519?

CVE-2018-18519 affects Bestxsoftware Best Free Keylogger. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18519?

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-2018-18519 published?

CVE-2018-18519 was published on 2018-11-19 and last updated on 2026-06-17.

CVE-2018-18519

CVE-2018-18519 is a high-severity vulnerability in Bestxsoftware Best Free Keylogger 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: 6.8
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Bestxsoftware Best Free Keylogger
Published: 2018-11-19
Last modified: 2026-06-17

Description

BestXsoftware Best Free Keylogger before 6.0.0 allows local users to gain privileges via a Trojan horse "%PROGRAMFILES%\BFK 5.2.9\syscrb.exe" file because of insecure permissions for the BUILTIN\Users group.

Frequently asked questions

What is CVE-2018-18519?: BestXsoftware Best Free Keylogger before 6.0.0 allows local users to gain privileges via a Trojan horse "%PROGRAMFILES%\BFK 5.2.9\syscrb.exe" file because of insecure permissions for the BUILTIN\Users group.
How severe is CVE-2018-18519?: CVE-2018-18519 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-2018-18519 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18519?: CVE-2018-18519 affects Bestxsoftware Best Free Keylogger. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18519?: 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-2018-18519 published?: CVE-2018-18519 was published on 2018-11-19 and last updated on 2026-06-17.

References

https://github.com/ilsani/rd/tree/master/security-advisories/bestxsoftware/cve-2018-18519

Affected products (1)

cpe:2.3:a:bestxsoftware:best_free_keylogger:*:*:*:*:*:*:*:*

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