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CVE-2018-20440

Status: ModifiedCritical (9.8)—
Severity9.8Critical · CVSS 3.0
Exploitation probability1.37 %higher than 72% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.4413.2.2.2.1.5.4.1.14.1.3.10001 and 1.3.6.1.4.1.4413.2.2.2.1.18.1.2.3.4.1.2.10001 SNMP requests.

CVSS

Base score
9.8
Version
3.0
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
1.37 %
Percentile among all scored CVEs
72
Score date
10/24/2026

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).

Affected technologies (1)

Technicolor — Cwa0101 Firmware

CWEs

References

Show 2 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2018-20440",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/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"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  ],
  "published": "2018-12-25T15:29:00.600",
  "references": [
    {
      "url": "https://misteralfa-hack.blogspot.com/2018/12/technicolor-passwords-wireless-via-snmp.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://misteralfa-hack.blogspot.com/2018/12/technicolor-passwords-wireless-via-snmp.html",
      "tags": [
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.4413.2.2.2.1.5.4.1.14.1.3.10001 and 1.3.6.1.4.1.4413.2.2.2.1.18.1.2.3.4.1.2.10001 SNMP requests."
    },
    {
      "lang": "es",
      "value": "Los dispositivos Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC permiten que atacantes remotos descubran credenciales wifi mediante peticiones SNMP iso.3.6.1.4.1.4413.2.2.2.1.5.4.1.14.1.3.10001 e iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0."
    }
  ],
  "lastModified": "2026-06-17T01:52:50.963",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "698A9E11-06FA-4268-BB2E-08F513B7711C"
            }
          ],
          "operator": "OR"
        },
        {
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          "cpeMatch": [
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          ],
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      "operator": "AND"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}