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.
CVE-2009-3931
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 2%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 80.8%
- KEV
- Not listed
Published
November 12, 2009
Last Modified
April 23, 2026
References (26)
- cve@mitrehttp://code.google.com/p/chromium/issues/detail?id=23979
- cve@mitrehttp://codereview.chromium.org/243115
- cve@mitrehttp://codereview.chromium.org/261022
- cve@mitrehttp://codereview.chromium.org/download/issue243115_2002.diff
- cve@mitrehttp://codereview.chromium.org/download/issue261022_1.diff
- cve@mitrehttp://googlechromereleases.blogspot.com/2009/11/stable-channel-update.html
- cve@mitrehttp://secunia.com/advisories/37273
- cve@mitrehttp://securethoughts.com/2009/11/using-blended-browser-threats-involving-chrome-to-steal-files-on-your-computer/
- cve@mitrehttp://www.osvdb.org/59742
- cve@mitrehttp://www.securityfocus.com/archive/1/507713
- cve@mitrehttp://www.securityfocus.com/bid/36947
- cve@mitrehttp://www.vupen.com/english/advisories/2009/3159
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/54171
- af854a3a-2127-422b-91ae-364da2661108http://code.google.com/p/chromium/issues/detail?id=23979
- af854a3a-2127-422b-91ae-364da2661108http://codereview.chromium.org/243115
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 36× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-20
- CVE-2002-2444EG 9.8CRITICAL
- CVE-2005-0116NVD 0.0EG 9.0EPSS 99%NONE
- CVE-2002-1359NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2000-0380NVD 0.0EG 9.0EPSS 98%NONE
- CVE-2000-0258EG 7.5EPSS 97%HIGH
- CVE-2004-2771EG 0.0EPSS 93%NONE
- CVE-2002-2443EG 0.0EPSS 93%NONE
- CVE-2002-2433EG 0.0NONE
- CVE-2003-1569EG 0.0NONE
- CVE-2003-1568EG 0.0NONE
Frequently asked(4)
What is CVE-2009-3931?
CVE-2009-3931 is a none vulnerability published on November 12, 2009. 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…
When was CVE-2009-3931 disclosed?
CVE-2009-3931 was first published in the National Vulnerability Database on November 12, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-3931 actively exploited?
CVE-2009-3931 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-3931?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3931, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2009-3931
Is Your Infrastructure Affected by CVE-2009-3931?
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