Is CVE-2016-6631 in the CISA KEV catalog?

No. CVE-2016-6631 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-6631?

CVE-2016-6631 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2016-6631?

CVE-2016-6631 has an EPSS score of 4.75% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-6631?

Upgrade phpmyadmin on debian 11 to 4:4.6.4+dfsg1-1 or later.

CVE & CISA-KEV Catalog

CVE-2016-6631

HIGHEPSS 91th pctl

7.5

CVSS v3

NVD

Description

An issue was discovered in phpMyAdmin. A user can execute a remote code execution attack against a server when phpMyAdmin is being run as a CGI application. Under certain server configurations, a user can pass a query string which is executed as a command-line argument by the file generator_plugin.sh. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

CWE-78OS Command Injection

How to fix

Remediation Available

phpmyadminDebian

Fixed in:4:4.6.4+dfsg1-1CVE-2016-6631

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

4.75%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

phpmyadmin.net

Third-Party Advisory1

securityfocus.com

Other references2

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2014-6271	Critical	9.8	100%	KEV	Fix
CVE-2019-16920	Critical	9.8	100%	KEV	-
CVE-2022-44877	Critical	9.8	100%	KEV	Fix
CVE-2020-8515	Critical	9.8	100%	KEV	-
CVE-2020-9054	Critical	9.8	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 2026-05-06.