How severe is CVE-2021-44207?

CVE-2021-44207 has a CVSS score of 8.1/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2021-44207?

Affected package information for CVE-2021-44207 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2021-44207?

No fixed version has been published for CVE-2021-44207 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2021-44207 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2021-44207, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

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

CVE-2021-44207 has an EPSS (Exploit Prediction Scoring System) score of 8.9%, placing it in the 93th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

Is CVE-2021-44207 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2021-44207 (Acclaim Systems USAHERDS Use of Hard-Coded Credentials Vulnerability ) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2024-12-23. CISA required all US federal civilian agencies to remediate this vulnerability by 2025-01-13. The required action was: 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. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2021-44207?

CVE-2021-44207 is classified as Hard-coded Credentials (CWE-798). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2021-44207?

CVE-2021-44207 affects acclaimsystems usaherds. Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2021-44207 published, and has it been updated?

CVE-2021-44207 was published on December 21, 2021 and was last updated on November 10, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2024-12-23 — agencies required to remediate by 2025-01-13

CVE-2021-44207

HIGH

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

Published

Dec 21, 2021

Updated

Nov 10, 2025

Affected

0 pkgs

Patched

None yet

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

8.9%probability of exploitation in next 30 days

Lower Risk93th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

Affected Products

1 product · 1 configurations

Application

usaherdsacclaimsystems

≤ 7.4.0.1

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

cisa.govCISADec 2024

Frequently Asked Questions

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

O3 Security · Impact-Aware SCA

Is CVE-2021-44207 in your stack?

O3 detects CVE-2021-44207 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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