CVE-2016-9860

An issue was discovered in phpMyAdmin. An unauthenticated user can execute a denial of service attack when phpMyAdmin is running with $cfg['AllowArbitraryServer']=true. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.

Published: 2016-12-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-9860 is rated Moderate Risk (51.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.93%). EPSS rose +1.23% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-9860

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.71% 1.93% +1.23%
2 2026-05-30 1.02% 0.71% -0.31%
3 2025-07-30 — 1.02% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-9860

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.0 MEDIUM
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2016-9860

GitHub Security Advisory for CVE-2016-9860

GHSA-3hw5-fffc-qrg4 · Severity: medium · Ecosystem: composer — phpMyAdmin Denial of Service (DoS)

OS Trackers for CVE-2016-9860

vendor priority summary link
alpine — CVE-2016-9860: 1 source package rows (phpmyadmin); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2016-9860
debian unimportant CVE-2016-9860 unimportant priority: Debian including 1 source packages (phpmyadmin), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2016-9860
gentoo normal CVE-2016-9860: 1 GLSA(s) (201701-32), 1 atom(s) (dev-db/phpmyadmin); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-9860
ubuntu medium CVE-2016-9860 medium priority: Ubuntu including 1 source packages (phpmyadmin), 23 status rows across 23 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, xenial, yakkety, zesty): not-affected 17, ignored 2, needed 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2016-9860

Affected software / configurations for CVE-2016-9860

Vendor Product Version Raw CPE
phpmyadmin phpmyadmin 4.6.0 cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.0:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.6.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.6.2 cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.2:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.6.3 cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.3:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.6.4 cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.4:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.0 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.0:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.2 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.2:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.3 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.3:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.4 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.4.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.4.2 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4.2:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.5 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.5:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.6 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.6:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.7 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.7:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.8 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.8:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.9 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.9:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.2 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.2:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.3 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.3:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.4 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.4:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.5 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.5:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.6 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.6:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.7 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.7:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.8 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.8:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.9 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.9:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.10 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.10:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.11 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.11:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.12 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.12:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.13 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.13:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.14 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.14:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.15 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.15:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.16 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.16:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.0.10.17 cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.17:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.0 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.0:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.1.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.1.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.2 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.2:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.3 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.3:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.4 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.4:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.5 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.5:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.6 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.6:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.6.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.6.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.7 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.7:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.8 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.8:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.9 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.9:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.10 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.10:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.11 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.11:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.12 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.12:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.13 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.13:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.13.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.13.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.14 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.14:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.14.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.14.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.1 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.1:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.2 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.2:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.3 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.3:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.4 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.4:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.5 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.5:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.6 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.6:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.7 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.7:*:*:*:*:*:*:*
phpmyadmin phpmyadmin 4.4.15.8 cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.8:*:*:*:*:*:*:*

References for CVE-2016-9860

cvelogic Threat Intelligence