How severe is CVE-2017-14919?

CVE-2017-14919 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-14919 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14919?

CVE-2017-14919 primarily affects Nodejs Node.js. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-14919?

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

When was CVE-2017-14919 published?

CVE-2017-14919 was published on 2017-10-30 and last updated on 2026-06-17.

CVE-2017-14919

CVE-2017-14919 is a high-severity vulnerability in Nodejs Node.js with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Nodejs Node.js
Published: 2017-10-30
Last modified: 2026-06-17

Description

Node.js before 4.8.5, 6.x before 6.11.5, and 8.x before 8.8.0 allows remote attackers to cause a denial of service (uncaught exception and crash) by leveraging a change in the zlib module 1.2.9 making 8 an invalid value for the windowBits parameter.

Frequently asked questions

What is CVE-2017-14919?: Node.js before 4.8.5, 6.x before 6.11.5, and 8.x before 8.8.0 allows remote attackers to cause a denial of service (uncaught exception and crash) by leveraging a change in the zlib module 1.2.9 making 8 an invalid value for the windowBits parameter.
How severe is CVE-2017-14919?: CVE-2017-14919 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-14919 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14919?: CVE-2017-14919 primarily affects Nodejs Node.js. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-14919?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-14919 published?: CVE-2017-14919 was published on 2017-10-30 and last updated on 2026-06-17.

References

Affected products (23)

cpe:2.3:a:nodejs:node.js:4.8.2:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:4.8.3:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:4.8.4:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.10.2:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.10.3:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.11.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.11.1:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.11.2:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.11.3:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:6.11.4:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.1.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.1.1:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.1.2:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.1.3:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.1.4:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.2.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.2.1:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.3.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.4.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.5.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.6.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:8.7.0:*:*:*:*:*:*:*

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