How severe is CVE-2001-0945?

CVE-2001-0945 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0945 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0945?

CVE-2001-0945 primarily affects Microsoft Outlook Express. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0945?

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

When was CVE-2001-0945 published?

CVE-2001-0945 was published on 2001-12-03 and last updated on 2026-06-16.

CVE-2001-0945

CVE-2001-0945 is a medium-severity vulnerability in Microsoft Outlook Express with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Outlook Express
Published: 2001-12-03
Last modified: 2026-06-16

Description

Buffer overflow in Outlook Express 5.0 through 5.02 for Macintosh allows remote attackers to cause a denial of service via an e-mail message that contains a long line.

Frequently asked questions

What is CVE-2001-0945?: Buffer overflow in Outlook Express 5.0 through 5.02 for Macintosh allows remote attackers to cause a denial of service via an e-mail message that contains a long line.
How severe is CVE-2001-0945?: CVE-2001-0945 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0945 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0945?: CVE-2001-0945 primarily affects Microsoft Outlook Express. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0945?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0945 published?: CVE-2001-0945 was published on 2001-12-03 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:microsoft:outlook_express:5.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook_express:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook_express:5.0.2:*:*:*:*:*:*:*

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