CVE & CISA-KEV Catalog

CVE-2016-0742

HIGHEPSS 100th pctl
7.5
CVSS v3
NVD

Description

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (invalid pointer dereference and worker process crash) via a crafted UDP DNS response.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available
nginxDebian
Fixed in:1.9.10-1CVE-2016-0742
Fixed in:1.9.10-1CVE-2016-0742
Fixed in:1.9.10-1CVE-2016-0742
Fixed in:1.9.10-1CVE-2016-0742
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

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

81.96%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-21758High7.593%-Fix
CVE-2023-21547High7.589%-Fix
CVE-2014-3470Medium4.386%-Fix
CVE-2021-44224High8.282%-Fix
CVE-2009-1386Medium5.080%-Fix
CVE-2006-6565Medium4.072%-Fix

Common questions

How do I fix CVE-2016-0742?

Published advisories record a fix for 7 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2016-0742 being actively exploited?

Not that we know of. CVE-2016-0742 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 82.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2016-0742?

CVE-2016-0742 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2016-0742 affect?

Published advisories record a fix for nginx (Debian), nginx (Ubuntu), nginx-core (Ubuntu), nginx-extras (Ubuntu), and 3 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.