How severe is CVE-2017-16556?

CVE-2017-16556 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 high, and availability none.

Is CVE-2017-16556 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16556?

CVE-2017-16556 primarily affects K7computing Antivirus. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-16556?

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

When was CVE-2017-16556 published?

CVE-2017-16556 was published on 2018-01-16 and last updated on 2026-06-17.

CVE-2017-16556

CVE-2017-16556 is a medium-severity vulnerability in K7computing Antivirus 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: K7computing Antivirus
Published: 2018-01-16
Last modified: 2026-06-17

Description

In K7 Antivirus Premium before 15.1.0.53, user-controlled input can be used to allow local users to write to arbitrary memory locations.

Frequently asked questions

What is CVE-2017-16556?: In K7 Antivirus Premium before 15.1.0.53, user-controlled input can be used to allow local users to write to arbitrary memory locations.
How severe is CVE-2017-16556?: CVE-2017-16556 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 high, and availability none.
Is CVE-2017-16556 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16556?: CVE-2017-16556 primarily affects K7computing Antivirus. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-16556?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-16556 published?: CVE-2017-16556 was published on 2018-01-16 and last updated on 2026-06-17.

References

https://support.k7computing.com/index.php?/selfhelp/view-article/2nd-Advisory-issued-on-6th-November-2017

Affected products (7)

cpe:2.3:a:k7computing:antivirus:*:*:*:*:premium:*:*:*
cpe:2.3:a:k7computing:antivirus:*:*:*:*:plus:*:*:*
cpe:2.3:a:k7computing:endpoint:*:*:*:*:*:*:*:*
cpe:2.3:a:k7computing:internet_security:*:*:*:*:*:*:*:*
cpe:2.3:a:k7computing:total_security:*:*:*:*:*:*:*:*
cpe:2.3:a:k7computing:total_security:*:*:*:*:plus:*:*:*
cpe:2.3:a:k7computing:ultimate_security:*:*:*:*:*:*:*:*

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