VDB
DEBIAN-CVE-2025-53506
DEBIAN-CVE-2025-53506
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | tomcat9 | 0 |
| Debian:13 | tomcat11 | 0, 11.0.11-1, 11.0.6-1 |
| Debian:14 | tomcat9 | 0 |
| Debian:12 | tomcat10 | 10.1.13-1, 10.1.40-1, 10.1.40-1~bpo12+1 |
| Debian:14 | tomcat11 | 11.0.6-1, 0 |
| Debian:13 | tomcat10 | 10.1.46-1, 10.1.40-1, 0 |
| Debian:12 | tomcat9 | 0 |
| Debian:14 | tomcat10 | 10.1.40-1, 0 |
Timeline
- Jul 10, 2025 CVE Published
- Sep 1, 2026 CVE Updated