CVE-2026-15686

HIGH

7.2

CVSS v3

Description

Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adminer. Authentication is required to exploit this vulnerability. The specific flaw exists within the multi_query method. The issue results from an incorrect check of a function return value. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-28201.

CWE-253

How to fix

Remediation Available

adminerDebian

Fixed in:5.4.3+dfsg-1CVE-2026-15686

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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.72%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Other references2

Related Vulnerabilities

Other CWE-253 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-49286	High	8.6	10%	-	Fix
CVE-2017-7474	Critical	9.8	2.5%	-	-
CVE-2024-43521	High	7.5	2.4%	-	Fix
CVE-2020-6107	Medium	5.5	1.5%	-	Fix
CVE-2022-24880	Medium	5.3	1.2%	-	Fix
CVE-2023-24487	Medium	6.3	1.1%	-	Fix

Common questions

How do I fix CVE-2026-15686?

Upgrade adminer on debian unstable to 5.4.3+dfsg-1 or later.

Is CVE-2026-15686 being actively exploited?

Not that we know of. CVE-2026-15686 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.72% is the estimated probability that it will be exploited in the next 30 days. That is higher than 52% of all scored CVEs.

How severe is CVE-2026-15686?

CVE-2026-15686 has a CVSS v3 base score of 7.2, 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-2026-15686 affect?

Published advisories record a fix for adminer (Debian). 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 2026-08-22.