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CVE-2023-31631

24
FAUCET Score

CVE-2023-31631 is a Denial of Service (DoS) vulnerability affecting OpenLink Virtuoso Open Source v7.2.9, specifically within the sqlo_preds_contradiction component. Attackers can trigger this DoS by injecting specially crafted SQL statements. With a CVSS score of 7.5 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, requiring no user interaction or privileges. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.2.9CPE matchmatch criteria
cpe:2.3:a:openlinksw:virtuoso:7.2.9:*:*:*:open_source:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 30th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2023-31631Moderate

virtuoso-opensource: DoS in sqlo_preds_contradiction component

May 21, 2023

References

github.com / openlink/virtuoso-opensource/issues/1137
ExploitIssue TrackingPatch