Integer Overflow Vulnerability in Apache Tomcat Affects Multiple Versions
CVE-2025-52520

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Tomcat
Vendor
CVE Published:
10 July 2025

What is CVE-2025-52520?

An Integer Overflow vulnerability in Apache Tomcat can occur due to rare configurations of multipart uploads. This flaw may allow attackers to bypass intended size limits, potentially leading to Denial of Service (DoS) conditions. It is crucial for users of affected versions to upgrade to 11.0.9, 10.1.43, or 9.0.107 to mitigate this vulnerability.

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Affected Version(s)

Apache Tomcat 11.0.0-M1 <= 11.0.8

Apache Tomcat 10.1.0-M1 <= 10.1.42

Apache Tomcat 9.0.0.M1 <= 9.0.106

References

https://lists.apache.org/thread/trqq01bbxw6c92zx69kx2mw2q...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Saravana Kumar
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