Is CVE-2021-30129 in the CISA KEV catalog?

No. CVE-2021-30129 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30129?

CVE-2021-30129 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-30129?

CVE-2021-30129 has an EPSS score of 3.39% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30129?

Upgrade sshd to 2.7.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-30129

MEDIUMEPSS 88th pctl

6.5

CVSS v3

NVD

Description

A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error. This issue affects the SFTP and port forwarding features of Apache Mina SSHD version 2.0.0 and later versions. It was addressed in Apache Mina SSHD 2.7.0

CWE-772

How to fix

Remediation Available

sshdNVD

Affected:>= 2.0.0, < 2.7.0Fixed in:2.7.0CVE-2021-30129derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.39%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

oracle.com

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

openwall.com

Other references2

Related Vulnerabilities

Other CWE-772 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2003-0132	Medium	5.0	86%	-	Fix
CVE-2017-14495	High	7.5	84%	-	Fix
CVE-2021-22883	High	7.5	77%	-	Fix
CVE-2024-2398	High	8.6	36%	-	Fix
CVE-2020-9375	High	7.5	28%	-	-
CVE-1999-1127	High	7.5	18%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.