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CVE-2020-37228

Status: DeferredCritical (9.3)—

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks against user accounts.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

AV:N/PR:N permite explotación remota sin privilegios (T1190). La vulnerabilidad permite bypass de CAPTCHA y autenticación mediante código recuperado, facilitando acceso de cuenta válida (T1078.001) y ataques de fuerza bruta (T1110.001).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Password PoliciesMulti-factor AuthenticationUpdate SoftwareVulnerability ScanningPrivileged Account ManagementNetwork Segmentation

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Ids6 — Dsspro Digital Signage SystemAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2020-37228",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2020-37228",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
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            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
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          ],
          "version": "2.0.3",
          "timestamp": "2026-05-18T17:39:52.553812Z"
        }
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    "cvssMetricV31": [
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        "source": "disclosure@vulncheck.com",
        "cvssData": {
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "disclosure@vulncheck.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
    {
      "source": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "vendor": "Yerootech",
          "product": "iDS6 DSSPro Digital Signage System",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            }
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  "published": "2026-05-16T16:16:18.667",
  "references": [
    {
      "url": "http://www.yerootech.com",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.exploit-db.com/exploits/48991",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.vulncheck.com/advisories/ids6-dsspro-digital-signage-system-captcha-security-bypass",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5607.php",
      "source": "disclosure@vulncheck.com"
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
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    {
      "lang": "en",
      "value": "iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks against user accounts."
    }
  ],
  "lastModified": "2026-06-17T03:17:18.610",
  "sourceIdentifier": "disclosure@vulncheck.com"
}