CVE-2026-82989 (GCVE-0-2026-82989)

Vulnerability from cvelistv5 – Published: 2026-10-05 23:14 – Updated: 2026-10-05 23:14
VLAI
Title
CVE-2026-82989
Summary
There is an input injection in vCast exposed network services in ViewSonic ViewBoard that allows a remote, unauthenticated attacker to inject arbitrary input into service endpoints via network-based HTTP requests to unauthenticated endpoints
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Viewsonic vCast Affected: v0.0.0 , ≤ v3.2.715 (custom)
guessed Create a notification for this product.
Show details on NVD website
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      "affected": [
        {
          "product": "vCast",
          "vendor": "Viewsonic",
          "versions": [
            {
              "lessThanOrEqual": "v3.2.715",
              "status": "affected",
              "version": "v0.0.0",
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          "value": "There is an input injection in vCast exposed network services in ViewSonic ViewBoard that allows a remote, unauthenticated attacker to inject arbitrary input into service endpoints via network-based HTTP requests to unauthenticated endpoints"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-147 Improper Neutralization of Input During Web Page Generation (\u201cInput Injection\u201d)",
              "lang": "en"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T23:14:14.325Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/"
        },
        {
          "url": "https://kb.cert.org/vuls/id/234131"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-82989",
      "x_generator": {
        "engine": "VINCE 3.0.49",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-82989"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-82989",
    "datePublished": "2026-10-05T23:14:14.325Z",
    "dateReserved": "2026-08-31T15:22:36.481Z",
    "dateUpdated": "2026-10-05T23:14:14.325Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "vCast",
                "vendor": "Viewsonic",
                "versions": [
                  {
                    "lessThanOrEqual": "v3.2.715",
                    "status": "affected",
                    "version": "v0.0.0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "cret@cert.org"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "There is an input injection in vCast exposed network services in ViewSonic ViewBoard that allows a remote, unauthenticated attacker to inject arbitrary input into service endpoints via network-based HTTP requests to unauthenticated endpoints"
          }
        ],
        "id": "CVE-2026-82989",
        "lastModified": "2026-10-06T00:16:37.097",
        "metrics": {},
        "published": "2026-10-06T00:16:37.097",
        "references": [
          {
            "source": "cret@cert.org",
            "url": "https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/"
          },
          {
            "source": "cret@cert.org",
            "url": "https://kb.cert.org/vuls/id/234131"
          }
        ],
        "sourceIdentifier": "cret@cert.org",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.