synced 13 MIN AGO
01 Record

CVE-2025-31650

Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame

HighPUBLISHEDCNA: apache
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
View raw JSON

02 Description

Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
61.32% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 99.1% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-04-28 19:14Z1 YR AGO
Last updated
2025-11-03 19:53Z12 MO AGO
Reserved
2025-03-31
Assigning CNA
apache
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-459Incomplete CleanupBase
  • CWE-20Improper Input ValidationClass
Data version
5.2
Document digest
276d7f9667f541fc3c1a174a3f7547537afe710eead8ad697e753e3c3f40afbe

05 Affected products

VendorProductVersionsPlatforms
Apache Software FoundationApache Tomcat9.0.76 to 9.0.102, 10.1.10 to 10.1.39, 11.0.0-M2 to 11.0.5, 8.5.90 to 8.5.100—

06 References

07 Fixed in

AlmaLinux 8

  • tomcat
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-admin-webapps
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-docs-webapp
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-el-3.0-api
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-lib
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-webapps
    Fixed in 1:9.0.87-1.el8_10.4

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • tomcat
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-admin-webapps
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-docs-webapp
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-el-3.0-api
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-lib
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-webapps
    Fixed in 1:9.0.87-3.el9_6.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • tomcat9
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-admin-webapps
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-docs-webapp
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-el-3.0-api
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-jsp-2.3-api
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-lib
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-servlet-4.0-api
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-webapps
    Fixed in 1:9.0.87-5.el10_0.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Arch Linux

  • tomcat10
    No fix yet
  • tomcat9
    No fix yet

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

CloudLinux 8

  • tomcat
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-admin-webapps
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-docs-webapp
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-el-3.0-api
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-lib
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.87-1.el8_10.4
  • tomcat-webapps
    Fixed in 1:9.0.87-1.el8_10.4

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • tomcat
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-admin-webapps
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-docs-webapp
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-el-3.0-api
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-lib
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.87-3.el9_6.1
  • tomcat-webapps
    Fixed in 1:9.0.87-3.el9_6.1

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • tomcat9
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-admin-webapps
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-docs-webapp
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-el-3.0-api
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-jsp-2.3-api
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-lib
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-servlet-4.0-api
    Fixed in 1:9.0.87-5.el10_0.1
  • tomcat9-webapps
    Fixed in 1:9.0.87-5.el10_0.1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • tomcat10
    Fixed in 10.1.40-1
  • tomcat9
    Fixed in 9.0.70-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • tomcat10
    Fixed in 10.1.40-1
  • tomcat11
    Fixed in 11.0.6-1
  • tomcat9
    Fixed in 9.0.70-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • tomcat10
    Fixed in 10.1.40-1
  • tomcat11
    Fixed in 11.0.6-1
  • tomcat9
    Fixed in 9.0.70-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 24.04 LTS

  • tomcat10
    Fixed in 10.1.16-1ubuntu0.1~esm3
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.