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CVE-2007-3645

15
FAUCET Score

CVE-2007-3645 is a denial-of-service vulnerability affecting libarchive versions prior to 2.2.4, specifically within the archive_read_support_format_tar.c component. It allows user-assisted remote attackers to crash the application via malformed PAX extension headers or an unexpected end-of-file condition in a tar header, leading to a NULL pointer dereference. The vulnerability has a CVSS score of 4.3, indicating medium attack complexity and potential for partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.2.3CPE matchmatch criteria
cpe:2.3:a:freebsd:libarchive:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.44%
Probability of exploitation in next 30 days
EPSS Percentile
87.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0344 is in the 83rd percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.debian.org / cgi-bin/bugreport.cgi
osvdb.org / 38093
osvdb.org / 38094
people.freebsd.org / ~kientzle/libarchive
secunia.com / advisories/26050
PatchVendor Advisory
secunia.com / advisories/26062
PatchVendor Advisory
secunia.com / advisories/26355
secunia.com / advisories/28377
security.freebsd.org / advisories/FreeBSD-SA-07:05.libarchive.asc
PatchVendor Advisory
security.freebsd.org / patches/SA-07:05/libarchive.patch
Patch
security.gentoo.org / glsa/glsa-200708-03.xml
exchange.xforce.ibmcloud.com / vulnerabilities/35404
debian.org / security/2008/dsa-1455
novell.com / linux/security/advisories/2007_15_sr.html
securityfocus.com / bid/24885
Patch
securitytracker.com / id
vupen.com / english/advisories/2007/2521