CVE-2005-2405: n/a vulnerability

CVE-2005-2405: Opera 8.01, when the "Arial Unicode MS" font (ARIALUNI.TTF) is installed, does not properly handle extended...

Opera 8.01, when the "Arial Unicode MS" font (ARIALUNI.TTF) is installed, does not properly handle extended ASCII characters in the file download dialog box, which allows remote attackers to spoof file extensions and possibly trick users into executing arbitrary code.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 22:22 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2005-2405 is a legacy Opera 8.01 browser issue where a download dialog could show a misleading file extension when a specific Arial Unicode font is installed. The business risk is user deception: someone may think a downloaded file is harmless and run it. No active exploitation is cited in the supplied sources. Exposure is likely limited to legacy systems running Opera 8.01 with the Arial Unicode MS font installed. Modern supported browsers are not identified as affected in the supplied CVE data. Treat this as a legacy hygiene issue, not an emergency, unless Opera 8.01 remains in production. Any remaining exposure should be removed because the browser is obsolete and the attack relies on user trust in downloads. Mitigation focus: Retire Opera 8.01 from managed endpoints.; Use a currently supported browser for internet access.; Check Opera 8.02 vendor changelog and advisories for official remediation guidance..

Prepared: Jun 29, 2026, 18:52 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2005-2405 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 28, 2005, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
opera-content-disposition-extension-spoofing(21784)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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