How severe is CVE-2007-3641?

CVE-2007-3641 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-3641 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3641?

CVE-2007-3641 affects Freebsd Libarchive. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-3641?

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-2007-3641 published?

CVE-2007-3641 was published on 2007-07-14 and last updated on 2026-06-16.

CVE-2007-3641

CVE-2007-3641 is a critical-severity vulnerability in Freebsd Libarchive 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.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Freebsd Libarchive
Published: 2007-07-14
Last modified: 2026-06-16

Description

archive_read_support_format_tar.c in libarchive before 2.2.4 does not properly compute the length of a certain buffer when processing a malformed pax extension header, which allows user-assisted remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted (1) PAX or (2) TAR archive that triggers a buffer overflow.

Frequently asked questions

What is CVE-2007-3641?: archive_read_support_format_tar.c in libarchive before 2.2.4 does not properly compute the length of a certain buffer when processing a malformed pax extension header, which allows user-assisted remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted (1) PAX or (2) TAR archive that triggers a buffer overflow.
How severe is CVE-2007-3641?: CVE-2007-3641 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-3641 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3641?: CVE-2007-3641 affects Freebsd Libarchive. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-3641?: 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-2007-3641 published?: CVE-2007-3641 was published on 2007-07-14 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:freebsd:libarchive:*:*:*:*:*:*:*:*

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CVE-2007-3645 — Medium (CVSS 4.3): archive_read_support_format_tar.c in libarchive before 2.2.4 allows user-assisted remote attackers to cause a denial of…
CVE-2007-3644 — Medium (CVSS 4.3): archive_read_support_format_tar.c in libarchive before 2.2.4 allows user-assisted remote attackers to cause a denial of…

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