Cyber Resilience

CVE-2026-15686

Published
20 August 2026
Modified
20 August 2026
CVSS Score v3 7.2
Click a component to see what it means
Raw vectorCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.011 63th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-15686 is a high-severity Incorrect Check of Function Return Value (CWE-253) vulnerability in Zerodayinitiative (inferred from references). Its CVSS base score is 7.2 (High).

Operationally, ranked in the top 37% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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…

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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(s)

Related Threats

CVEs Like This One

CVE-2026-53090Shared CWE-253
CVE-2026-35091Shared CWE-253
CVE-2026-43863Shared CWE-253
CVE-2025-57767Shared CWE-253
CVE-2026-5818Shared CWE-253
CVE-2023-24487Shared CWE-253
CVE-2025-54090Shared CWE-253
CVE-2026-35339Shared CWE-253
CVE-2026-46419Shared CWE-253
CVE-2026-35340Shared CWE-253

Affected Assets

Zerodayinitiative
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and code analysis can discover missing or incorrect return-value checks.

Documented development standards and tools can mandate verified checking of every function return value.

Security engineering principles include requirements for robust error checking of all function returns.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly enforce proper error-handling and return-value checking during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development catches missing or incorrect return-value checks.

prevents

Secure SDLC mandates return-value checks and error handling, directly reducing CWE-253.

prevents

Application security requirements include robust error handling that mitigates incorrect return-value checks.

prevents

Secure architecture principles require defensive coding practices such as validating function results.

prevents

Secure coding explicitly demands checking return values, covering most of CWE-253.

References