CVE & CISA-KEV Catalog

CVE-2016-0747

MEDIUMEPSS 94th pctl
5.3
CVSS v3
NVD

Description

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.

CWE-400Resource Exhaustion

How to fix

Remediation Available
nginxDebian
Fixed in:1.9.10-1CVE-2016-0747
Fixed in:1.9.10-1CVE-2016-0747
Fixed in:1.9.10-1CVE-2016-0747
Fixed in:1.9.10-1CVE-2016-0747
nginxUbuntu
Fixed in:1.4.6-1ubuntu3.4USN-2892-1
nginx-coreUbuntu
Fixed in:1.4.6-1ubuntu3.4USN-2892-1
nginx-extrasUbuntu
Fixed in:1.4.6-1ubuntu3.4USN-2892-1
nginx-fullUbuntu
Fixed in:1.4.6-1ubuntu3.4USN-2892-1
nginx-lightUbuntu
Fixed in:1.4.6-1ubuntu3.4USN-2892-1
nginx-naxsiUbuntu
Fixed in:1.4.6-1ubuntu3.4USN-2892-1

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
AvailabilityLow

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

Exploit Intelligence

8.43%probability of exploitation in 30 days
94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-44487High7.5100%KEVFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2011-3192High7.899%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2024-25617Medium5.389%-Fix
CVE-2018-1000115High7.589%-Fix
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Markdown

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HTML

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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 2026-05-06.