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CVE-2021-25329

Incomplete fix for CVE-2020-9484

HIGH
7
CVSS Score
Published: March 1, 2021 at 12:00 PM UTC
Updated: October 8, 2026 at 09:17 PM UTC
12 products affected across 3 vendorsDebian LinuxDatabase ServerTomcat

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Severity
HIGH7
Exploit prediction
EPSS 9%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tomcat· Apache
95%
7.0.0 ≤ v ≤ 7.0.1078.5.0 ≤ v ≤ 8.5.619.0.0 ≤ v ≤ 9.0.41Apache Tomcat 10 ≤ v < 10.0.0Apache Tomcat 7 ≤ v < 7.0.107Apache Tomcat 8.5 ≤ v < 8.5.61Apache Tomcat 9 ≤ v < 9.0.41*10.0.010.0.0 milestone110.0.0 milestone1010.0.0 milestone210.0.0 milestone310.0.0 milestone410.0.0 milestone510.0.0 milestone610.0.0 milestone710.0.0 milestone810.0.0 milestone98.59.0.09.0.0 milestone19.0.0 milestone109.0.0 milestone119.0.0 milestone129.0.0 milestone139.0.0 milestone149.0.0 milestone159.0.0 milestone169.0.0 milestone179.0.0 milestone189.0.0 milestone199.0.0 milestone29.0.0 milestone209.0.0 milestone219.0.0 milestone229.0.0 milestone239.0.0 milestone249.0.0 milestone259.0.0 milestone269.0.0 milestone279.0.0 milestone39.0.0 milestone49.0.0 milestone59.0.0 milestone69.0.0 milestone79.0.0 milestone89.0.0 milestone9Apache Tomcat 10Apache Tomcat 7Apache Tomcat 8.5Apache Tomcat 9
Affected range stops below 10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.107, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.5.61, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.41, so it looks safe — our inference, not a vendor statement
Debian Linux· Debiandrupal
95%
10.09.0
Agile Product Lifecycle Management· Oracledrupal
95%
9.3.39.3.6
Communications Cloud Native Core Policy· Oracle
95%
1.14.0
Communications Cloud Native Core Security Edge Protection Proxy· Oracle
95%
1.6.0
Communications Instant Messaging Server· Oracle
95%
10.0.1.5.0
Database Server· Oracle
95%
12.2.0.119c21c
Graph Server and Client· Oracle
95%
v < 21.3.0*
Affected range stops below 21.3.0, so it looks safe — our inference, not a vendor statement
Instantis Enterprisetrack· Oracle
95%
17.117.217.3
Managed File Transfer· Oracle
95%
12.2.1.3.012.2.1.4.0

References (17)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/03/01/2
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r11ce01e8a4c7269b88f88212f21830edf73558997ac7744f37769b77%40%3Cusers.tomcat.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r732b2ca289dc02df2de820e8775559abd6c207f159e39f559547a085%40%3Cusers.tomcat.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r8a2ac0e476dbfc1e6440b09dcc782d444ad635d6da26f0284725a5dc%40%3Cusers.tomcat.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/rb51ccd58b2152fc75125b2406fc93e04ca9d34e737263faa6ff0f41f%40%3Cusers.tomcat.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/rf6d5d57b114678d8898005faef31e9fd6d7c981fcc4ccfc3bc272fc9%40%3Cdev.tomcat.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.apache.org%3E
x_refsource_MISCMailing Listx_refsource_MLISTVendor Advisory
Source: [email protected]
https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.tomcat.apache.org%3E

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGH[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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