Is CVE-2018-1000168 in the CISA KEV catalog?

No. CVE-2018-1000168 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-1000168?

CVE-2018-1000168 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-1000168?

CVE-2018-1000168 has an EPSS score of 10.65% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-1000168?

Upgrade nghttp2 on debian 11 to 1.31.1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-1000168

HIGHEPSS 95th pctl

7.5

CVSS v3

NVD

Description

nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.

CWE-20Improper Input Validation CWE-476NULL Pointer Dereference

How to fix

Remediation Available

nghttp2Debian

Fixed in:1.31.1-1CVE-2018-1000168

Node.jsWindows application

Affected:10.0.0 10.4.1Fixed in:10.4.1Node.js Foundation

Node.js (LTS)Windows application

Affected:10.0.0 10.4.1Fixed in:10.4.1Node.js Foundation

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

10.65%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

Vendor Advisory1

nghttp2.org

Third-Party Advisory5

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-09.