How severe is CVE-2017-18857?

CVE-2017-18857 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-18857 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18857?

CVE-2017-18857 primarily affects Netgear Insight. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-18857?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-18857 published?

CVE-2017-18857 was published on 2020-04-28 and last updated on 2026-06-17.

CVE-2017-18857

CVE-2017-18857 is a critical-severity vulnerability in Netgear Insight with a CVSS 3.x base score of 9.8. 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-521.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-521
Affected product: Netgear Insight
Published: 2020-04-28
Last modified: 2026-06-17

Description

The NETGEAR Insight application before 2.42 for Android and iOS is affected by password mismanagement.

Frequently asked questions

What is CVE-2017-18857?: The NETGEAR Insight application before 2.42 for Android and iOS is affected by password mismanagement.
How severe is CVE-2017-18857?: CVE-2017-18857 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-18857 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18857?: CVE-2017-18857 primarily affects Netgear Insight. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-18857?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-18857 published?: CVE-2017-18857 was published on 2020-04-28 and last updated on 2026-06-17.

References

https://kb.netgear.com/000038799/Security-Fix-for-Password-Management-in-NETGEAR-Insight-App-PSV-2017-1978

Affected products (2)

cpe:2.3:a:netgear:insight:*:*:*:*:*:android:*:*
cpe:2.3:a:netgear:insight:*:*:*:*:*:iphone_os:*:*

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