Cyber Resilience

CVE-2023-26785

RCE in Mariadb 10.5.0

Public PoCRCE
Published
17 October 2024
Modified
10 July 2025
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.022 81th percentile
Risk Priority 95 floored blend · peak EPSS

Summary

CVE-2023-26785 is a critical-severity Code Injection (CWE-94) vulnerability in Mariadb Mariadb. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 19% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

MariaDB version 10.5 contains a remote code execution vulnerability that can be triggered by loading arbitrary code from a shared object file as a user-defined function and then issuing a create function statement. The issue is tracked as CWE-94 and carries a CVSS 3.1 score of 9.8, reflecting network-accessible attack conditions with no required authentication or user interaction. The MariaDB Foundation disputes the report on the grounds that no privilege boundary is crossed.

An unauthenticated remote attacker can exploit the flaw to execute arbitrary code on the database server. Because the vector requires the ability to upload a shared object and execute privileged SQL statements, the practical impact depends on whether an attacker already possesses sufficient database rights.

The two referenced sources consist of a public proof-of-concept repository and an unrelated 2012 disclosure thread; neither supplies vendor mitigation guidance or patch details. The associated EPSS score has remained at 0.63 from its observed peak, indicating sustained but not newly emerging exploitation interest.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

MariaDB v10.5 was discovered to contain a remote code execution (RCE) vulnerability via UDF Code in a Shared Object File, followed by a "create function" statement. NOTE: this is disputed by the MariaDB Foundation because no privilege boundary is crossed.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
T1059.002 AppleScript Execution
Adversaries may abuse AppleScript for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.005 Visual Basic Execution
Adversaries may abuse Visual Basic (VB) for execution.
T1059.006 Python Execution
Adversaries may abuse Python commands and scripts for execution.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-27766Same product: Mariadb Mariadb
CVE-2023-39593Same product: Mariadb Mariadb
CVE-2026-44168Same product: Mariadb Mariadb
CVE-2026-49261Same product: Mariadb Mariadb
CVE-2026-48165Same product: Mariadb Mariadb
CVE-2026-44170Same product: Mariadb Mariadb
CVE-2026-48163Same product: Mariadb Mariadb
CVE-2026-32710Same product: Mariadb Mariadb
CVE-2026-44169Same product: Mariadb Mariadb
CVE-2026-44173Same product: Mariadb Mariadb

Affected Assets

mariadb
mariadb
10.5.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.3.1

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation finds code paths that accept and execute externally influenced strings.

Input validation directly stops untrusted data from being used to construct executable code without neutralization.

Least privilege limits the damage an injected code fragment can perform once executed.

Requiring documented secure development standards and tools enforces use of safe code-generation APIs and escaping.

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

PR.PS-06's SDLC practices directly target injection flaws via secure coding and testing (mostly), yet as a single broad outcome it leaves many code-generation specifics unaddressed (partial).

PR.DS-10 none match
prevents

PR.DS-10 protects runtime data confidentiality/integrity but has no bearing on neutralizing externally influenced input during code generation, so neither direction shows any preventive effect.

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.

prevents

Banning unapproved code samples and unauthenticated web services, combined with secure-coding standards and SAST, prevents the dynamic generation or inclusion of attacker-supplied code.

none

Controls that restrict unauthorized or malicious code from being introduced via external networks or removable media limit opportunities for an attacker to inject and execute arbitrary code.

References