How severe is CVE-2009-4130?

CVE-2009-4130 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2009-4130 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4130?

CVE-2009-4130 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4130?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-4130 published?

CVE-2009-4130 was published on 2009-12-14 and last updated on 2026-06-16.

CVE-2009-4130

CVE-2009-4130 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mozilla Firefox
Published: 2009-12-14
Last modified: 2026-06-16

Description

Visual truncation vulnerability in the MakeScriptDialogTitle function in nsGlobalWindow.cpp in Mozilla Firefox allows remote attackers to spoof the origin domain name of a script via a long name.

Frequently asked questions

What is CVE-2009-4130?: Visual truncation vulnerability in the MakeScriptDialogTitle function in nsGlobalWindow.cpp in Mozilla Firefox allows remote attackers to spoof the origin domain name of a script via a long name.
How severe is CVE-2009-4130?: CVE-2009-4130 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2009-4130 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4130?: CVE-2009-4130 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4130?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4130 published?: CVE-2009-4130 was published on 2009-12-14 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

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