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CVE-2025-61021: An issue in the sqlo_natural_join_cond component of openlink virtuoso-opensource v7.2.11 allows attackers t...

An issue in the sqlo_natural_join_cond component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2025-61021 is a denial-of-service issue in OpenLink Virtuoso Open Source 7.2.11. A remote attacker may be able to crash or make the database service unavailable using crafted SQL statements. The public record rates it high because exploitation requires no authentication or user interaction and impacts availability only.

Executive priority

Prioritize assessment within the next patch cycle, faster for internet-facing or business-critical Virtuoso systems. The main business risk is service disruption, not confirmed data theft. Remediation guidance is incomplete, so compensating access controls matter now.

Technical view

The issue is reported in the sqlo_natural_join_cond component of virtuoso-opensource v7.2.11. CVSS 3.1 is 7.5: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The CVE lists CWE-89, but the stated impact is DoS rather than data exposure or modification. The source bundle does not name a fixed version.

Likely exposure

Organizations running OpenLink Virtuoso Open Source 7.2.11, especially if SQL query interfaces are reachable over a network, should treat this as relevant. Exposure is unclear for other versions because the CVE affected-product metadata is incomplete.

Exploitation context

The CVE states attackers can cause DoS via crafted SQL statements. CISA KEV status is false in the provided bundle, and no cited source confirms active exploitation. Public issue details exist, so defenders should assume enough information may be available for reproduction.

Researcher notes

Public data is limited to the CVE record and GitHub issue reference. The record names v7.2.11 and sqlo_natural_join_cond but does not provide affected CPEs, a patch, or confirmed exploit activity. Avoid assuming broader version impact without vendor confirmation.

Mitigation direction

  • Identify any OpenLink Virtuoso Open Source 7.2.11 deployments.
  • Restrict network access to Virtuoso SQL interfaces to trusted clients only.
  • Monitor vendor and GitHub issue guidance for fixed versions or workarounds.
  • Apply vendor-provided updates when available and tested.
  • Use rate limiting or query controls where supported.

Validation and detection

  • Inventory Virtuoso versions across servers and containers.
  • Confirm whether SQL interfaces are internet-accessible or broadly reachable internally.
  • Review logs for repeated failed or abnormal SQL activity.
  • Check service uptime and crash history around suspicious queries.
  • Track the referenced GitHub issue for remediation updates.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-61021 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2025-61021Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-89

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.