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CVE-2017-14223

Status: ModifiedMedium (6.5)—
Severity6.5Medium · CVSS 3.0
Exploitation probability2.54 %higher than 85% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

In libavformat/asfdec_f.c in FFmpeg 3.3.3, a DoS in asf_build_simple_index() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted ASF file, which claims a large "ict" field in the header but does not contain sufficient backing data, is provided, the for loop would consume huge CPU and memory resources, since there is no EOF check inside the loop.

CVSS

Base score
6.5
Version
3.0
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
2.54 %
Percentile among all scored CVEs
85
Score date
10/22/2026

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 (2)

Debian — Debian LinuxFfmpeg — Ffmpeg

CWEs

References

Show 8 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2017-14223",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
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        "cvssData": {
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          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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    "cvssMetricV30": [
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        "type": "Primary",
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
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  "affected": [
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          "product": "n/a",
          "versions": [
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  "published": "2017-09-09T01:29:02.767",
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      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In libavformat/asfdec_f.c in FFmpeg 3.3.3, a DoS in asf_build_simple_index() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted ASF file, which claims a large \"ict\" field in the header but does not contain sufficient backing data, is provided, the for loop would consume huge CPU and memory resources, since there is no EOF check inside the loop."
    },
    {
      "lang": "es",
      "value": "En libavformat/asfdec_f.c en FFmpeg 3.3.3, una denegación de servicio en asf_build_simple_index() debido a una falta de comprobación EOE (End of File) podría provocar un gran consumo de CPU. Cuando se proporciona un archivo ASF manipulado, que reclama un gran campo \"ict\" en el encabezado pero que no contiene datos de respaldo suficientes, el bucle for consumiría una gran cantidad de recursos de CPU y de memoria, ya que no existe una comprobación EOF dentro del bucle."
    }
  ],
  "lastModified": "2026-06-17T01:05:46.707",
  "configurations": [
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        {
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              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            },
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              "vulnerable": true,
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
            }
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}