CVE-2021-44207
HighExploitedPublic exploitAcclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.
Published Dec 21, 2021 · Updated Nov 10, 2025
Key Facts
Patch immediately- CVE-2021-44207 is a high-severity vulnerability (CVSS 8.1 v3.1) affecting Usaherds (Acclaimsystems).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 8, 2022. Public exploit code is available.
- EPSS estimates a 18% probability of exploitation in the next 30 days.
- Fixed versions are available, including Usaherds <=7.4.0.1, Usaherds 7.4.0.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
18%
Higher than 97.1% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-44207 brief as a PDF
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Description
Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Dec 23, 2024 | Jan 13, 2025 | Not reported |
| Industry KEV feed | Mar 8, 2022 | Jan 13, 2025 | Not reported |
| CIRCL KEV | Dec 23, 2024 | Jan 13, 2025 | Not reported |
| ENISA EUVD | Dec 23, 2024 | n/a | Not reported |
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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| UsaherdsAcclaimsystems | See advisory | 7.4.0.1 |
Patched Releases
Usaherds
<=7.4.0.1
Timeline
Publicly disclosed
Dec 21, 2021
Added to Industry KEV feed
Mar 8, 2022
Added to CISA KEV
Dec 23, 2024
Added to CIRCL KEV
Dec 23, 2024
Added to ENISA EUVD
Dec 23, 2024
Last updated
Nov 10, 2025
Weakness Type
- CWE-798 Use of Hard-coded Credentials
References
- advisoryhttps://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0012/MNDT-2021-0012.md
- advisoryhttps://www.acclaimsystems.com
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.
Affected: Usaherds (Acclaimsystems). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 8, 2022.
Yes. It was added on Dec 23, 2024 with a federal remediation due date of Jan 13, 2025.
Public exploit code is available.
Fixed versions are available, including Usaherds <=7.4.0.1, Usaherds 7.4.0.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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