DEBIAN-CVE-2025-53506

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2025-53506
Published: 10 Jul 2025, 20:15
Last modified:28 Apr 2026, 20:30

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Jul 2025, 20:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:30
Last Modified
Vulnerability information updated

Description

Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • debian•tomcat10

    all | all | < 10.1.52-1~deb12u1 | < 10.1.52-1~deb13u1 | < 10.1.46-1

  • debian•tomcat11

    all | < 11.0.15-1~deb13u1 | < 11.0.11-1

  • debian•tomcat9

    < 9.0.107-0+deb11u1 | < 9.0.70-2 | < 9.0.70-2 | < 9.0.70-2

References (1)