CVE-2025-31650 EXPLOIT
7.5
HIGH · CVSS 3.1 · EPSS 61% (pctl 99)
Patch early
A public exploit exists.
Description
Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service. This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 61.04% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-459 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2025-04-28 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| apache | tomcat |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Apache Tomcat 10.1.39 - Denial of Service (DoS) | 2025-06-05 |
References
→ the Explorer · watch your stack · NVD