How severe is CVE-2016-4307?

CVE-2016-4307 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-4307 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4307?

CVE-2016-4307 affects Kaspersky Internet Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4307?

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

When was CVE-2016-4307 published?

CVE-2016-4307 was published on 2017-01-06 and last updated on 2026-06-17.

CVE-2016-4307

CVE-2016-4307 is a medium-severity vulnerability in Kaspersky Internet Security with a CVSS 3.x base score of 5.5. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Kaspersky Internet Security
Published: 2017-01-06
Last modified: 2026-06-17

Description

A denial of service vulnerability exists in the IOCTL handling functionality of Kaspersky Internet Security KL1 driver. A specially crafted IOCTL signal can cause an access violation in KL1 kernel driver resulting in local system denial of service. An attacker can run a program from user-mode to trigger this vulnerability.

Frequently asked questions

What is CVE-2016-4307?: A denial of service vulnerability exists in the IOCTL handling functionality of Kaspersky Internet Security KL1 driver. A specially crafted IOCTL signal can cause an access violation in KL1 kernel driver resulting in local system denial of service. An attacker can run a program from user-mode to trigger this vulnerability.
How severe is CVE-2016-4307?: CVE-2016-4307 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-4307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4307?: CVE-2016-4307 affects Kaspersky Internet Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4307 published?: CVE-2016-4307 was published on 2017-01-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kaspersky:internet_security:16.0.0:*:*:*:*:*:*:*

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