CVE-2015-6826

Status: ModifiedHigh (7.5)—

The ff_rv34_decode_init_thread_copy function in libavcodec/rv34.c in FFmpeg before 2.7.2 does not initialize certain structure members, which allows remote attackers to cause a denial of service (invalid pointer access) or possibly have unspecified other impact via crafted (1) RV30 or (2) RV40 RealVideo data.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 2.42%
Percentile among all scored CVEs: 84
Score date: 10/12/2026

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)

Canonical — Ubuntu Linux Ffmpeg — Ffmpeg

CWEs

CWE-20

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2015-6826",
  "cveTags": [],
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          "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"
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        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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  "published": "2015-09-06T02:59:09.237",
  "references": [
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      "url": "http://ffmpeg.org/security.html",
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      "url": "http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=3197c0aa87a3b7190e17d49e6fbc7b554e4b3f0a",
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      "lang": "en",
      "value": "The ff_rv34_decode_init_thread_copy function in libavcodec/rv34.c in FFmpeg before 2.7.2 does not initialize certain structure members, which allows remote attackers to cause a denial of service (invalid pointer access) or possibly have unspecified other impact via crafted (1) RV30 or (2) RV40 RealVideo data."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en la función ff_rv34_decode_init_thread_copy en libavcodec/rv34.c en FFmpeg en versiones anteriores a 2.7.2, no inicializa ciertos miembros de estructura, lo que permite a atacantes remotos causar una denegación de servicio (acceso a puntero no válido) o posiblemente tener otro impacto no especificado a través de datos (1) RV30 o (2) RV40 RealVideo manipulados."
    }
  ],
  "lastModified": "2026-06-17T00:31:29.223",
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