« Back to list

CVE-2021-39290

Status: ModifiedCritical (9.8)—

Certain NetModule devices allow Limited Session Fixation via PHPSESSID. These models with firmware before 4.3.0.113, 4.4.0.111, and 4.5.0.105 are affected: NB800, NB1600, NB1601, NB1800, NB1810, NB2700, NB2710, NB2800, NB2810, NB3700, NB3701, NB3710, NB3711, NB3720, and NB3800.

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).

Affected technologies (1)

Netmodule — Netmodule Router Software

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2021-39290",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "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
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-08-23T05:15:08.430",
  "references": [
    {
      "url": "https://seclists.org/fulldisclosure/2021/Aug/22",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.netmodule.com",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://seclists.org/fulldisclosure/2021/Aug/22",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.netmodule.com",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-384"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Certain NetModule devices allow Limited Session Fixation via PHPSESSID. These models with firmware before 4.3.0.113, 4.4.0.111, and 4.5.0.105 are affected: NB800, NB1600, NB1601, NB1800, NB1810, NB2700, NB2710, NB2800, NB2810, NB3700, NB3701, NB3710, NB3711, NB3720, and NB3800."
    },
    {
      "lang": "es",
      "value": "Determinados dispositivos NetModule permiten la Fijación de Sesión Limitada por medio de PHPSESSID. Estos modelos con versiones de firmware anteriores a 4.3.0.113, 4.4.0.111 y 4.5.0.105 están afectados: NB800, NB1600, NB1601, NB1800, NB1810, NB2700, NB2710, NB2800, NB2810, NB3700, NB3701, NB3710, NB3711, NB3720 y NB3800."
    }
  ],
  "lastModified": "2026-06-17T04:03:28.497",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:netmodule:netmodule_router_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "012DBD5F-C5F7-472F-98F0-0EE481A1A39D",
              "versionEndExcluding": "4.3.0.113"
            },
            {
              "criteria": "cpe:2.3:a:netmodule:netmodule_router_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "46A74835-CD8C-4CD7-98B5-0820A02DEAA0",
              "versionEndExcluding": "4.4.0.111",
              "versionStartIncluding": "4.4.0.0"
            },
            {
              "criteria": "cpe:2.3:a:netmodule:netmodule_router_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "09DCDB3A-0E51-4C6E-8423-DD2F84C64478",
              "versionEndExcluding": "4.5.0.105",
              "versionStartIncluding": "4.5.0.0"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netmodule:nb1600:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "6D275CDC-0FE9-40C6-8CD4-3C836458C6C6"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb1601:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "5C90BC32-C405-4178-B944-9CF39C212C46"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb1800:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A80AE348-C415-4B5F-B359-26E2F2A132F7"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb1810:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A3CF8E81-2EB5-4CDC-9FC9-CEAF4E1E7514"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb2700:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7751755B-A1A8-4538-94D1-A49FC40565A5"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb2710:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "0AFE5094-EA46-4389-880F-32E892BC703D"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb2800:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "EFF579A1-A31C-47F3-912A-43F5B4894497"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb2810:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "41310FAF-CD23-4126-942D-DA950A96DF3E"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb3700:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "79C621EF-0650-418D-B39D-C07FE4728DB9"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb3701:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "962F7AFA-76A3-4F83-AA2C-AB168C644104"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb3710:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "78EBE526-E036-4FCC-B617-376ABC679111"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb3711:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "923D8D38-E3DB-47C0-92C3-AD1A05EEAC83"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb3720:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "C2E345B5-CF76-4385-B4C3-B7F00DB0C52B"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb3800:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7120564A-4FE0-403E-A976-9658A665E51A"
            },
            {
              "criteria": "cpe:2.3:h:netmodule:nb800:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "3B550124-772B-4384-BA89-72B68E01F61E"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}