CVE-2021-42340

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

11.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 95.7% 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

2021-10-14 19:55Z5 YR AGO

Last updated

2024-08-04 03:30Z2 YR AGO

Reserved

2021-10-13

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.1

Document digest

56f60fe7bffdedde56349b79508d799be81a1a27f3ced5b8b083ffc9fc91595a

• lists.apache.orghttps://lists.apache.org/thread.html/r83a35be60f06aca2065f188ee542b9099695d57ced2e70e0885f905c%40%3Cannounce.tomcat.apache.org%3Ex_refsource_MISC
• lists.apache.org[myfaces-commits] 20211021 [myfaces-tobago] branch tobago-5.x updated: build: workaround for CVE-2021-42340https://lists.apache.org/thread.html/r8097a2d1550aa78e585fc77e602b9046e6d4099d8d132497c5387784%40%3Ccommits.myfaces.apache.org%3Emailing-listx_refsource_MLIST
• www.debian.orgDSA-5009https://www.debian.org/security/2021/dsa-5009vendor-advisoryx_refsource_DEBIAN
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211104-0001/x_refsource_CONFIRM
• kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10379x_refsource_CONFIRM
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.htmlx_refsource_MISC
• security.gentoo.orgGLSA-202208-34https://security.gentoo.org/glsa/202208-34vendor-advisoryx_refsource_GENTOO