How severe is CVE-2006-0236?

CVE-2006-0236 has a CVSS 2.0 base score of 5.1, rated medium severity.

Is CVE-2006-0236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-0236?

CVE-2006-0236 primarily affects Mozilla Thunderbird. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-0236?

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

When was CVE-2006-0236 published?

CVE-2006-0236 was published on 2006-01-18 and last updated on 2026-06-16.

CVE-2006-0236

CVE-2006-0236 is a medium-severity vulnerability in Mozilla Thunderbird with a CVSS 2.0 base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Medium (CVSS 2.0 base score 5.1)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Mozilla Thunderbird
Published: 2006-01-18
Last modified: 2026-06-16

Description

GUI display truncation vulnerability in Mozilla Thunderbird 1.0.2, 1.0.6, and 1.0.7 allows user-assisted attackers to execute arbitrary code via an attachment with a filename containing a large number of spaces ending with a dangerous extension that is not displayed by Thunderbird, along with an inconsistent Content-Type header, which could be used to trick a user into downloading dangerous content by dragging or saving the attachment.

Frequently asked questions

What is CVE-2006-0236?: GUI display truncation vulnerability in Mozilla Thunderbird 1.0.2, 1.0.6, and 1.0.7 allows user-assisted attackers to execute arbitrary code via an attachment with a filename containing a large number of spaces ending with a dangerous extension that is not displayed by Thunderbird, along with an inconsistent Content-Type header, which could be used to trick a user into downloading dangerous content by dragging or saving the attachment.
How severe is CVE-2006-0236?: CVE-2006-0236 has a CVSS 2.0 base score of 5.1, rated medium severity.
Is CVE-2006-0236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-0236?: CVE-2006-0236 primarily affects Mozilla Thunderbird. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-0236?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-0236 published?: CVE-2006-0236 was published on 2006-01-18 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:mozilla:thunderbird:1.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:1.5:beta2:*:*:*:*:*:*

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