Is CVE-2006-2781 in the CISA KEV catalog?

No. CVE-2006-2781 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-2781?

CVE-2006-2781 has a CVSS v2 base score of 6.4 (MEDIUM).

What is the EPSS score for CVE-2006-2781?

CVE-2006-2781 has an EPSS score of 3.31% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2006-2781?

Upgrade thunderbird on debian 11 to 1.5.0.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2006-2781

MEDIUMEPSS 87th pctl

6.4

CVSS v2

NVD

Description

Double free vulnerability in nsVCard.cpp in Mozilla Thunderbird before 1.5.0.4 and SeaMonkey before 1.0.2 allows remote attackers to cause a denial of service (hang) and possibly execute arbitrary code via a VCard that contains invalid base64 characters.

CWE-119Buffer Overflow

How to fix

Remediation Available

thunderbirdDebian

Fixed in:1.5.0.4-1CVE-2006-2781

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.31%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.