CVE-2009-3548

CVE-2009-3548 is a high-severity vulnerability in Apache Tomcat with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 79% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-255.

Key facts

Description

The Windows installer for Apache Tomcat 6.0.0 through 6.0.20, 5.5.0 through 5.5.28, and possibly earlier versions uses a blank default password for the administrative user, which allows remote attackers to gain privileges.

Frequently asked questions

What is CVE-2009-3548?
The Windows installer for Apache Tomcat 6.0.0 through 6.0.20, 5.5.0 through 5.5.28, and possibly earlier versions uses a blank default password for the administrative user, which allows remote attackers to gain privileges.
How severe is CVE-2009-3548?
CVE-2009-3548 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-3548 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 79% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3548?
CVE-2009-3548 primarily affects Apache Tomcat. In total, 142 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3548?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2009-3548 published?
CVE-2009-3548 was published on 2009-11-12 and last updated on 2026-06-16.

References

Affected products (142)

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