How severe is CVE-2006-6772?

CVE-2006-6772 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2006-6772 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6772?

CVE-2006-6772 affects W3m. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-6772?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2006-6772 published?

CVE-2006-6772 was published on 2006-12-27 and last updated on 2026-06-16.

CVE-2006-6772

CVE-2006-6772 is a critical-severity vulnerability in W3m with a CVSS 2.0 base score of 9.3. 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-134.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-134
Affected product: W3m
Published: 2006-12-27
Last modified: 2026-06-16

Description

Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2, when run with the dump or backend option, allows remote attackers to execute arbitrary code via format string specifiers in the Common Name (CN) field of an SSL certificate associated with an https URL.

Frequently asked questions

What is CVE-2006-6772?: Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2, when run with the dump or backend option, allows remote attackers to execute arbitrary code via format string specifiers in the Common Name (CN) field of an SSL certificate associated with an https URL.
How severe is CVE-2006-6772?: CVE-2006-6772 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2006-6772 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6772?: CVE-2006-6772 affects W3m. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6772?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2006-6772 published?: CVE-2006-6772 was published on 2006-12-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:w3m:w3m:0.5.1:*:*:*:*:*:*:*

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