CVE & CISA-KEV Catalog

CVE-2021-21544

LOW
2.7
CVSS v3
NVD

Description

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain an improper authentication vulnerability. A remote authenticated malicious user with high privileges could potentially exploit this vulnerability to manipulate the username field under the comment section and set the value to any user.

How to fix

Remediation Available
idrac9 firmwareNVD
Affected:< 4.40.00.00Fixed in:4.40.00.00CVE-2021-21544derived 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 RequiredHigh
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

0.92%probability of exploitation in 30 days
57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-602 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-8162High7.53.0%-Fix
CVE-2024-23666High7.52.7%-Fix
CVE-2014-2374High7.51.9%--
CVE-2014-2373High7.51.8%--
CVE-2020-24683Critical9.81.5%--
CVE-2017-14013Medium5.61.4%--

Common questions

How do I fix CVE-2021-21544?

Upgrade idrac9 firmware to 4.40.00.00 or later.

Is CVE-2021-21544 being actively exploited?

Not that we know of. CVE-2021-21544 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.92% is the estimated probability that it will be exploited in the next 30 days. That is higher than 57% of all scored CVEs.

How severe is CVE-2021-21544?

CVE-2021-21544 has a CVSS v3 base score of 2.7, rated low. 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-2021-21544 affect?

Published advisories record a fix for idrac9 firmware (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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CVE-2021-21544 severity badge

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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.