How severe is CVE-2006-1305?

CVE-2006-1305 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2006-1305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-1305?

CVE-2006-1305 primarily affects Microsoft Office. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-1305?

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

When was CVE-2006-1305 published?

CVE-2006-1305 was published on 2006-12-31 and last updated on 2026-06-16.

CVE-2006-1305

CVE-2006-1305 is a medium-severity vulnerability in Microsoft Office with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 31% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 31% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Microsoft Office
Published: 2006-12-31
Last modified: 2026-06-16

Description

Microsoft Outlook 2000, 2002, and 2003 allows user-assisted remote attackers to cause a denial of service (memory exhaustion and interrupted mail recovery) via malformed e-mail header information, possibly related to (1) long subject lines or (2) large numbers of recipients in To or CC headers.

Frequently asked questions

What is CVE-2006-1305?: Microsoft Outlook 2000, 2002, and 2003 allows user-assisted remote attackers to cause a denial of service (memory exhaustion and interrupted mail recovery) via malformed e-mail header information, possibly related to (1) long subject lines or (2) large numbers of recipients in To or CC headers.
How severe is CVE-2006-1305?: CVE-2006-1305 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2006-1305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1305?: CVE-2006-1305 primarily affects Microsoft Office. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-1305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-1305 published?: CVE-2006-1305 was published on 2006-12-31 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:microsoft:office:2000:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook:2000:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook:2002:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2003:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook:2003:*:*:*:*:*:*:*

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Other CWE-399 (Resource Management Errors) vulnerabilities

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CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →