CVE-2021-28123

Q: How do I fix CVE-2021-28123?

Upgrade cohesity dataplatform to 6.5.1b or later.

Q: Is CVE-2021-28123 being actively exploited?

Not that we know of. CVE-2021-28123 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 70% of all scored CVEs.

Q: How severe is CVE-2021-28123?

CVE-2021-28123 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-28123 affect?

Published advisories record a fix for cohesity dataplatform (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALEPSS 70th pctl

9.8

CVSS v3

NVD

Description

Undocumented Default Cryptographic Key Vulnerability in Cohesity DataPlatform version 6.3 prior 6.3.1g, 6.4 up to 6.4.1c and 6.5.1 through 6.5.1b. The ssh key can provide an attacker access to the linux system in the affected version.

CWE-1188

How to fix

Remediation Available

cohesity dataplatformNVD

Affected:>= 6.5.1, < 6.5.1bFixed in:6.5.1bCVE-2021-28123derived 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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.43%probability of exploitation in 30 days

70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-1188 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13927	Critical	9.8	100%	KEV	Fix
CVE-2023-27524	High	8.9	97%	KEV	-
CVE-2022-24706	Critical	9.8	92%	KEV	Fix
CVE-2020-11532	Critical	9.8	77%	-	Fix
CVE-2018-16752	High	8.8	43%	-	-
CVE-2020-14011	Critical	9.8	29%	-	-

Common questions

How do I fix CVE-2021-28123?

Upgrade cohesity dataplatform to 6.5.1b or later.

Is CVE-2021-28123 being actively exploited?

Not that we know of. CVE-2021-28123 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 70% of all scored CVEs.

How severe is CVE-2021-28123?

CVE-2021-28123 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-28123 affect?

Published advisories record a fix for cohesity dataplatform (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.