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7.0High

Apache Tomcat

CVE-2021-25329

The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.

What this means for your business

  • It affects Apache Tomcat. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 9% chance of attack attempts being seen in the next 30 days, ranking above 95% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Apache Tomcat, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

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Scoring

CVSS
7.0 (v3.1)
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigned by
security@apache.org

Dates

Published
2021-03-01
Last modified
2026-08-25
Sources
NVD

Affected products

  • Apache Tomcat7.0.0 - 7.0.107, 8.5.0 - 8.5.61, 9.0.0 - 9.0.41, 9.0.0, 10.0.0
  • Debian Debian Linux9.0, 10.0
  • Oracle Agile Product Lifecycle Management9.3.3, 9.3.6
  • Oracle Communications Cloud Native Core Policy1.14.0
  • Oracle Communications Cloud Native Core Security Edge Protection Proxy1.6.0
  • Oracle Communications Instant Messaging Server10.0.1.5.0
  • Oracle Database12.2.0.1, 19c, 21c
  • Oracle Graph Server And Client- 21.3.0
  • Oracle Instantis Enterprisetrack17.1, 17.2, 17.3
  • Oracle Managed File Transfer12.2.1.3.0, 12.2.1.4.0
  • Oracle Mysql Enterprise Monitor- 8.0.23
  • Oracle Siebel Ui Framework- 21.9, 21.9

As listed in the NVD configuration data. Not a statement about your estate.

References