CVE-2025-61023Public exploitNetwork attack vector

Service crash via malformed GROUP BY CUBE

Published Jun 23, 2026 · Updated Jun 23, 2026

Denial of service in st_compare in OpenLink Virtuoso Open-Source Edition 7.2.11 allows remote attackers to crash the server via crafted SQL. The SQL compiler passes grouping bitmap entries through qsort to st_compare, where the malformed query triggers a crash; the exact invalid state is undisclosed. Network access to an SQL endpoint is sufficient; the published proof of concept interrupts availability without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in st_compare in OpenLink Virtuoso Open-Source Edition 7.2.11 allows remote attackers to crash the server via crafted SQL. The SQL compiler passes grouping bitmap entries through qsort to st_compare, where the malformed query triggers a crash; the exact invalid state is undisclosed. Network access to an SQL endpoint is sufficient; the published proof of concept interrupts availability without reported data disclosure or modification.

The record

CVE
CVE-2025-61023
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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