CVE-2009-3931

Status: ModifiedHigh (9.3)—
Severity9.3High · CVSS 2.0
Exploitation probability2.25 %higher than 83% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Incomplete blacklist vulnerability in browser/download/download_exe.cc in Google Chrome before 3.0.195.32 allows remote attackers to force the download of certain dangerous files via a "Content-Disposition: attachment" designation, as demonstrated by (1) .mht and (2) .mhtml files, which are automatically executed by Internet Explorer 6; (3) .svg files, which are automatically executed by Safari; (4) .xml files; (5) .htt files; (6) .xsl files; (7) .xslt files; and (8) image files that are forbidden by the victim's site policy.

CVSS

Base score
9.3
Version
2.0
Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
2.25 %
Percentile among all scored CVEs
83
Score date
10/23/2026

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)

CWEs

References

Show 26 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2009-3931",
  "cveTags": [],
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          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
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  "published": "2009-11-12T17:54:58.420",
  "references": [
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      "value": "Incomplete blacklist vulnerability in browser/download/download_exe.cc in Google Chrome before 3.0.195.32 allows remote attackers to force the download of certain dangerous files via a \"Content-Disposition: attachment\" designation, as demonstrated by (1) .mht and (2) .mhtml files, which are automatically executed by Internet Explorer 6; (3) .svg files, which are automatically executed by Safari; (4) .xml files; (5) .htt files; (6) .xsl files; (7) .xslt files; and (8) image files that are forbidden by the victim's site policy."
    },
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      "value": "Vulnerabilidad de lista negra incompleta en browser/download/download_exe.cc en Google Chrome en versiones anteriores a la 3.0.195.32 permite a atacantes remotos forzar la descarga de ciertos ficheros peligrosos mediante la designación de \"Content-Disposition: adjunto\", como es demostrado por ficheros (1) .mht y (2) .mhtml, que son automáticamente ejecutados por Internet Explorer 6; ficheros (3) .svg, que son automáticamente ejecutados por Safari; (4) ficheros .xml; (5) ficheros .htt; (6) ficheros .xsl; (7) ficheros .xslt; y (8) ficheros de imagen que son prohibidos por la política del sitio de la victima."
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  "lastModified": "2026-06-16T23:12:38.870",
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