CVE-2021-30639

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

6.89% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 93.5% 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.

Published

2021-07-12 14:55Z5 YR AGO

Last updated

2024-08-03 22:40Z2 YR AGO

Reserved

2021-04-13

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-755Improper Handling of Exceptional ConditionsClass
• CWE-459Incomplete CleanupBase

Data version

5.1

Document digest

e0143034c2e23b705ef2c4eca9081b2ae2c6b6e6a58027585a0e4f7785ede89d

• lists.apache.orghttps://lists.apache.org/thread.html/rd84fae1f474597bdf358f5bdc0a5c453c507bd527b83e8be6b5ea3f4%40%3Cannounce.tomcat.apache.org%3Ex_refsource_MISC
• lists.apache.org[tomcat-users] 20210712 RE: [SECURITY] CVE-2021-30639 Apache Tomcat DoShttps://lists.apache.org/thread.html/r79a7c019712b39aedf7cf4da9276d80610f04441b2a4f6506cb2daaf%40%3Cusers.tomcat.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[tomcat-dev] 20210712 RE: [SECURITY] CVE-2021-30639 Apache Tomcat DoShttps://lists.apache.org/thread.html/r79a7c019712b39aedf7cf4da9276d80610f04441b2a4f6506cb2daaf%40%3Cdev.tomcat.apache.org%3Emailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210827-0007/x_refsource_CONFIRM
• kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10366x_refsource_CONFIRM
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
• security.gentoo.orgGLSA-202208-34https://security.gentoo.org/glsa/202208-34vendor-advisoryx_refsource_GENTOO