{"id":"CVE-2021-44207","published":"2021-12-21T18:15:08Z","modified":"2026-06-17T04:12:03Z","title":"Acclaim Systems USAHERDS Use of Hard-Coded Credentials Vulnerability","vendor":"Acclaim Systems","product":"USAHERDS","tier":"core","eol":null,"description":{"text":"Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.","provenance":"source","from":"NVD"},"summary":{"text":"Acclaim Systems USAHERDS, through version 7.4.0.1, contains a use of hard-coded credentials flaw, meaning the product relies on fixed, built-in credentials. An attacker who knows or can extract those embedded credentials can authenticate to the affected component over the network, with high attack complexity, no prior privileges, and no user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:15Z"},"cvss":{"score":8.1,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.17578,"percentile":0.97135,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2024-12-23","dueDate":"2025-01-13","ransomware":false,"requiredAction":"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.","notes":"https://www.acclaimsystems.com/#contact ; https://www.tnatc.org/#contact ; https://nvd.nist.gov/vuln/detail/CVE-2021-44207","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-03-08","exploitedFirstSeen":"2022-03-08","ransomware":false,"evidence":[{"url":"https://www.mandiant.com/resources/blog/apt41-us-state-governments","date":"2022-03-08"},{"url":"https://www.hhs.gov/sites/default/files/apt41-recent-activity.pdf","date":"2022-09-22"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-12-23"}],"evidenceTotal":3,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-798","name":"Use of Hard-coded Credentials"}],"references":[{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0012/MNDT-2021-0012.md","tags":["Third Party Advisory"]},{"url":"https://www.acclaimsystems.com","tags":["Vendor Advisory"]},{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0012/MNDT-2021-0012.md","tags":["Third Party Advisory"]},{"url":"https://www.acclaimsystems.com","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44207","tags":["US Government Resource"]}],"techniques":[{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Hard-coded credentials enable valid account use","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"uses hard-coded credentials","start":33,"end":60}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Credential access yields data access on the system","mappingType":"primary_impact","evidence":[{"from":"description","quote":"uses hard-coded credentials","start":33,"end":60}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2021-31057","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-31057","exploited":true,"exploitedSince":"2024-12-23","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"ai"},{"stage":"primary","techniques":["T1005"],"provenance":"ai"}],"timeline":[{"date":"2021-12-21","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44207","provenance":"source"},{"date":"2022-03-08","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.mandiant.com/resources/blog/apt41-us-state-governments","provenance":"source"},{"date":"2024-12-23","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-12-23","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-31057","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":1098},"priority":{"score":63.1,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1696 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.43,"detail":"percentile 0.9714"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.67,"detail":"base score 8.1"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}