CVE-2025-61024
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue in the sqlo_try_in_loop component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA vulnerability exists in the sqlo_try_in_loop component of OpenLink Virtuoso OpenSource v7.2.11 where specially crafted SQL statements can trigger a denial of service condition, likely due to improper handling of query loops or resource management in the SQL optimization/execution layer.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed Virtuoso OpenSource versionRun 'virtuoso -?' or check the binary version information, or query the DB with 'select sys_stat('DB_VERSION');'Affected if The installed version is v7.2.11 or earlier unreleased versions of the 7.2.x line that contain the sqlo_try_in_loop component
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Confirm SQL optimizer/execution component is activeVerify the Virtuoso server process is running and SQL queries can be executed against the databaseAffected if The SQL execution layer (sqlo_) is loaded and operational, which is the default state for a running Virtuoso instance
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Monitor for abnormal query behavior or resource exhaustionCheck server logs for repeated 'sqlo_' related errors, excessive CPU/memory usage, or connection timeouts during SQL query processingAffected if Queries are triggering the sqlo_try_in_loop component in a way that causes hangs, crashes, or excessive resource consumption
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Review recent SQL query patternsAudit recent SQL statements executed against the database, particularly complex or nested queries that may exercise loop optimization code pathsAffected if Specially crafted SQL statements containing nested loops or complex query patterns are being processed by the vulnerable component
A user is affected if running Virtuoso OpenSource v7.2.11 and the sqlo_try_in_loop SQL execution component is active while processing queries that trigger the improper loop handling.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply vendor patches for virtuoso-opensource v7.2.11 when available; as a defense-in-depth measure, implement query timeouts and resource limits to mitigate malformed SQL causing resource exhaustion.
- Consultation6.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA6.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-61024 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-61024 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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