Is CVE-2021-44207 in the CISA KEV catalog?

Yes. CVE-2021-44207 is on the CISA Known Exploited Vulnerabilities list, added 2024-12-23.

What is the CVSS severity of CVE-2021-44207?

CVE-2021-44207 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2021-44207?

CVE-2021-44207 has an EPSS score of 17.58% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-44207?

No published fix for CVE-2021-44207 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2025-01-13. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2021-44207

HIGHCISA KEVEPSS 97th pctl

8.1

CVSS v3

NVD

Description

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

CWE-798Hard-coded Credentials

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Please contact the product developer for support and vulnerability mitigation.

Federal remediation due: 2025-01-13

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

17.58%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Acclaim Systems USAHERDS Use of Hard-Coded Credentials Vulnerability

Acclaim Systems USAHERDS contains a hard-coded credentials vulnerability that could allow an attacker to achieve remote code execution on the system that runs the application. The MachineKey must be obtained via a separate vulnerability or other channel.

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Please contact the product developer for support and vulnerability mitigation.

Remediation due: 2025-01-13

References

Vendor Advisory1

acclaimsystems.com

Third-Party Advisory1

github.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-798 (Hard-coded Credentials) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26138	Critical	9.8	98%	KEV	-
CVE-2024-3272	Critical	9.8	98%	KEV	-
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2024-28987	Critical	9.1	93%	KEV	Fix
CVE-2019-15976	Critical	9.8	93%	-	Fix
CVE-2024-20439	Critical	9.8	92%	KEV	Fix

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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 2025-11-10.