CVE-2009-5055: n/a vulnerability

CVE-2009-5055: Open Ticket Request System (OTRS) before 2.4.4 grants ticket access on the basis of single-digit substrings...

Open Ticket Request System (OTRS) before 2.4.4 grants ticket access on the basis of single-digit substrings of the CustomerID value, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by visiting a ticket, as demonstrated by leveraging the CustomerID 12 account to read tickets that should be available only to CustomerID 1 or CustomerID 2.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 18:44 UTC (UTC+00:00)

Security readout for executives and security teams

Older OTRS versions could let a logged-in customer see tickets belonging to other customers when CustomerID values overlapped as single-digit substrings. This is an authorization failure, not a system takeover. The business concern is unauthorized ticket disclosure, which may expose customer communications, support history, or sensitive operational details. Exposure is likely limited to organizations still running OTRS before 2.4.4, especially where customer identifiers overlap by digits. The provided sources do not identify specific downstream products, appliances, or hosted services. Prioritize remediation if the organization still runs legacy OTRS or stores sensitive customer data in tickets. For fully upgraded environments, the urgency is low, but evidence should be retained because affected versions are very old. Mitigation focus: Inventory OTRS deployments and identify versions older than 2.4.4.; Upgrade affected OTRS systems to 2.4.4 or later per vendor guidance.; Review CustomerID schemes for overlapping single-digit relationships..

Prepared: Jun 24, 2026, 13:28 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 18, 2011, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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