How severe is CVE-2018-15733?

CVE-2018-15733 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-2018-15733 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15733?

CVE-2018-15733 affects Stopzilla Antimalware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15733?

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

When was CVE-2018-15733 published?

CVE-2018-15733 was published on 2019-06-21 and last updated on 2026-06-17.

CVE-2018-15733

CVE-2018-15733 is a medium-severity vulnerability in Stopzilla Antimalware 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Stopzilla Antimalware
Published: 2019-06-21
Last modified: 2026-06-17

Description

An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains a NULL Pointer Dereference vulnerability due to not validating the size of the output buffer value from IOCtl 0x80002028.

Frequently asked questions

What is CVE-2018-15733?: An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains a NULL Pointer Dereference vulnerability due to not validating the size of the output buffer value from IOCtl 0x80002028.
How severe is CVE-2018-15733?: CVE-2018-15733 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-2018-15733 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15733?: CVE-2018-15733 affects Stopzilla Antimalware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15733?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-15733 published?: CVE-2018-15733 was published on 2019-06-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stopzilla:antimalware:6.5.2.59:*:*:*:*:*:*:*

More vulnerabilities in Stopzilla Antimalware

CVE-2018-15738 — Medium (CVSS 5.5): An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains an Arbitrary Write…
CVE-2018-15735 — Medium (CVSS 5.5): An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains an Arbitrary Write…
CVE-2018-15734 — Medium (CVSS 5.5): An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains an Arbitrary Write…
CVE-2018-15732 — Medium (CVSS 5.5): An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains an Arbitrary Write…
CVE-2018-15731 — Medium (CVSS 5.5): An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains a Denial of Service…
CVE-2018-15730 — Medium (CVSS 5.5): An issue was discovered in STOPzilla AntiMalware 6.5.2.59. The driver file szkg64.sys contains a Denial of Service…

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