CVE-2021-30129

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

3.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 87.8% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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

Moderate. 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 12:10Z5 YR AGO

Last updated

2024-08-03 22:24Z2 YR AGO

Reserved

2021-04-05

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
• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

1166f05372bcaf56d45db2fdee21ad6f15b1fd0a9e4732bfb09bc81a555e9575

• lists.apache.orghttps://lists.apache.org/thread.html/r6d4f78e192a0c8eabd671a018da464024642980ecd24096bde6db36f%40%3Cusers.mina.apache.org%3Ex_refsource_MISC
• lists.apache.org[announce] 20210712 CVE-2021-30129: DoS/OOM leak vulnerability in Apache Mina SSHD Serverhttps://lists.apache.org/thread.html/red01829efa2a8c893c4baff4f23c9312bd938543a9b8658e172b853b%40%3Cannounce.apache.org%3Emailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20210712 CVE-2021-30129: DoS/OOM leak vulnerability in Apache Mina SSHD Serverhttp://www.openwall.com/lists/oss-security/2021/07/12/1mailing-listx_refsource_MLIST
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.htmlx_refsource_MISC