How severe is CVE-2009-2433?

CVE-2009-2433 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-2433 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2433?

CVE-2009-2433 primarily affects Microsoft Ie. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2433?

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

When was CVE-2009-2433 published?

CVE-2009-2433 was published on 2009-07-10 and last updated on 2026-06-16.

CVE-2009-2433

CVE-2009-2433 is a medium-severity vulnerability in Microsoft Ie with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 19% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Ie
Published: 2009-07-10
Last modified: 2026-06-16

Description

Stack-based buffer overflow in the AddFavorite method in Microsoft Internet Explorer allows remote attackers to cause a denial of service (application crash) and possibly have unspecified other impact via a long URL in the first argument.

Frequently asked questions

What is CVE-2009-2433?: Stack-based buffer overflow in the AddFavorite method in Microsoft Internet Explorer allows remote attackers to cause a denial of service (application crash) and possibly have unspecified other impact via a long URL in the first argument.
How severe is CVE-2009-2433?: CVE-2009-2433 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-2433 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2433?: CVE-2009-2433 primarily affects Microsoft Ie. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2433?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2433 published?: CVE-2009-2433 was published on 2009-07-10 and last updated on 2026-06-16.

References

Affected products (14)

cpe:2.3:a:microsoft:ie:8.0b:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta1:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta2:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta3:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0.5730:unknown:gold:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0.5730.11:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.00.5730.1100:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.00.6000.16386:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.00.6000.16441:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:8.0.6001:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:8.0.6001:beta:*:*:*:*:*:*

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