CVE-2009-1839: n/a vulnerability

CVE-2009-1839: Mozilla Firefox 3 before 3.0.11 associates an incorrect principal with a file: URL loaded through the locat...

Mozilla Firefox 3 before 3.0.11 associates an incorrect principal with a file: URL loaded through the location bar, which allows user-assisted remote attackers to bypass intended access restrictions and read files via a crafted HTML document, aka a "file-URL-to-file-URL scripting" attack.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:27 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-1839 is an old Firefox 3 browser issue. With user involvement, a crafted HTML document could abuse file: URL handling so Firefox used the wrong security identity and allowed reading local files that should have been restricted. Exposure is most likely in legacy environments still running Firefox 3 before 3.0.11 or old Linux/Solaris packages carrying that browser code. Current exposure cannot be inferred from the bundle. Treat this as a legacy hygiene issue unless Firefox 3 remains in use. If present, prioritize removal because the impact is local file disclosure from a browser security boundary bypass. Mitigation focus: Upgrade Firefox 3 installations to 3.0.11 or later where applicable.; Apply relevant vendor packages from Mozilla, Red Hat, Fedora, Debian, Slackware, or Sun guidance.; Remove unsupported Firefox 3 builds from managed endpoints..

Prepared: Jun 28, 2026, 10:45 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

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 12, 2009, 21:07 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

7Source 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
https://bugzilla.mozilla.org/show_bug.cgi?id=479943CVE reference · x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=503581CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:9256CVE reference · vdb-entry, signature
FEDORA-2009-6411CVE reference · vendor-advisory, x_refsource_FEDORA
FEDORA-2009-6366CVE reference · vendor-advisory, x_refsource_FEDORA
RHSA-2009:1095CVE reference · vendor-advisory, x_refsource_REDHAT

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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