Is CVE-2009-5055 in the CISA KEV catalog?

No. CVE-2009-5055 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-5055?

CVE-2009-5055 has a CVSS v2 base score of 3.5 (LOW).

What is the EPSS score for CVE-2009-5055?

CVE-2009-5055 has an EPSS score of 0.90% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-5055?

Upgrade otrs2 on debian 11 to 2.4.5-1 or later.

CVE & CISA-KEV Catalog

CVE-2009-5055

LOW

3.5

CVSS v2

NVD

Description

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.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

otrs2Debian

Fixed in:2.4.5-1CVE-2009-5055

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.90%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Patch1

source.otrs.org

Other references1

bugs.otrs.org

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.