vulnerability

CVE-2021-44207

8.1

High

KEV · Exploited in wildEPSS 18%Patch available

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

exploited

Yes, in CISA KEV since 23 Dec 2024fix by 13 Jan 2025 (CISA deadline for US federal agencies)

fix

Patch available see the advisory in the references

likelihood

EPSS 17.6%

Published 21 Dec 2021Analysed here 2 Nov 2026CVSS scored by CISA

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

triage

server-sideconfig / build-timeWAF can block: noAV · networkCWE-798· Hard-coded Credentials

Can a WAF block it? No. Hard-coded credentials let attackers log in normally. A WAF cannot tell their logins from real ones.

Also consider: patch · rotate

Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.

cvss vector

attack vectornetworkattack complexityhighprivileges requirednoneuser interactionnonescopeunchangedconfidentialityhighintegrityhighavailabilityhigh

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

common questions

Is CVE-2021-44207 being exploited?

Yes. CVE-2021-44207 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.

How severe is CVE-2021-44207?

CVE-2021-44207 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2021-44207?

Yes. A fix has been recorded for CVE-2021-44207. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2021-44207 affect?

CVE-2021-44207 affects acclaimsystems:usaherds. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

acclaimsystems:usaherds

cisa ssvc

exploitation: active
automatable: no
technical impact: total

Assessed by CISA 11 Jan 2025 (SSVC 2.0.3).

timeline

21 Dec 2021Published
23 Dec 2024Added to CISA KEV (exploited in the wild) · 1,097 days (about 3 years) later
11 Jan 2025CISA SSVC assessment: exploitation active · 19 days later
13 Jan 2025CISA remediation due date (US federal agencies) · 2 days later
21 Oct 2025CVE record last updated · 282 days (about 9 months) later
2 Nov 2026Analysed by vulneraibility.com · 377 days (about 1 year) later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

3 references in the CVE record: 3 links

Linkacclaimsystems.com
Linkgithub.com /mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0012/MNDT-2021-0012.md
Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44207

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
CISA KEV catalog: exploitation, date added, due date
CISA Vulnrichment (ADP): SSVC decision points
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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