CVE-2025-61029
Deferred Deferred - Pending Action
Denial of Service in Virtuoso Open-Source Database

Publication date: 2026-06-23

Last updated on: 2026-06-23

Assigner: MITRE

Description
An issue in the sqlo_untry component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.
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Meta Information
Published
2026-06-23
Last Modified
2026-06-23
Generated
2026-06-24
AI Q&A
2026-06-23
EPSS Evaluated
N/A
NVD
CVE-2025-61029
EUVD
EUVD-2025-210324
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openlink virtuoso-opensource 7.2.11
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

This vulnerability exists in the sqlo_untry component of openlink virtuoso-opensource version 7.2.11. It allows attackers to cause a Denial of Service (DoS) by submitting specially crafted SQL statements that trigger a crash in the system.

Specifically, a complex SQL query involving nested CASE statements, subqueries, arithmetic operations, and tables with unique constraints and check conditions can cause the sqlo_untry function to crash, leading to the DoS condition.

Impact Analysis

The primary impact of this vulnerability is a Denial of Service (DoS) condition. An attacker can exploit this flaw by sending crafted SQL queries that cause the database system to crash, making the service unavailable to legitimate users.

This can disrupt business operations, cause downtime, and potentially lead to loss of availability of critical data or services relying on the openlink virtuoso-opensource database.

Detection Guidance

This vulnerability can be detected by executing a crafted SQL query that triggers the crash in the sqlo_untry function. The Proof of Concept (PoC) involves a complex SQL statement with nested CASE statements, subqueries, and arithmetic operations on a table with a unique constraint and a check condition.

To detect the vulnerability on your system, you can run the PoC SQL query inside a Virtuoso 7.2.11 instance, for example within a Docker container running Virtuoso. If the system crashes or shows abnormal behavior when executing the query, it indicates the presence of the vulnerability.

While the exact PoC query is not provided here, the detection approach involves using a fuzzer or manually executing complex SQL statements similar to those described.

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