How severe is CVE-2015-4077?

CVE-2015-4077 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2015-4077 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-2015-4077?

CVE-2015-4077 affects Fortinet Forticlient. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-4077?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-4077 published?

CVE-2015-4077 was published on 2015-09-03 and last updated on 2026-06-17.

CVE-2015-4077

CVE-2015-4077 is a low-severity vulnerability in Fortinet Forticlient with a CVSS 2.0 base score of 2.1. 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-200.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Fortinet Forticlient
Published: 2015-09-03
Last modified: 2026-06-17

Description

The (1) mdare64_48.sys, (2) mdare32_48.sys, (3) mdare32_52.sys, and (4) mdare64_52.sys drivers in Fortinet FortiClient before 5.2.4 allow local users to read arbitrary kernel memory via a 0x22608C ioctl call.

Frequently asked questions

What is CVE-2015-4077?: The (1) mdare64_48.sys, (2) mdare32_48.sys, (3) mdare32_52.sys, and (4) mdare64_52.sys drivers in Fortinet FortiClient before 5.2.4 allow local users to read arbitrary kernel memory via a 0x22608C ioctl call.
How severe is CVE-2015-4077?: CVE-2015-4077 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2015-4077 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-2015-4077?: CVE-2015-4077 affects Fortinet Forticlient. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-4077?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4077 published?: CVE-2015-4077 was published on 2015-09-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:*:*:*

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