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CVE-2010-3851

18
FAUCET Score

CVE-2010-3851 describes a vulnerability in libguestfs before version 1.5.23, affecting products like virt-v2v and virt-inspector, where a local guest OS administrator can read host files. This occurs when a raw-format disk image is used, and a crafted qcow2, VMDK, or VDI header exploits a lack of disk format specifier support. The vulnerability has a CVSS score of 4.7 (medium severity), indicating a local attack vector with medium complexity, potentially leading to complete confidentiality compromise. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.5.22CPE matchmatch criteria
cpe:2.3:a:libguestfs:libguestfs:*:*:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:libguestfs:libguestfs:1.5.0:*:*:*:*:*:*:*
1.5.1CPE matchmatch criteria
cpe:2.3:a:libguestfs:libguestfs:1.5.1:*:*:*:*:*:*:*
1.5.2CPE matchmatch criteria
cpe:2.3:a:libguestfs:libguestfs:1.5.2:*:*:*:*:*:*:*
1.5.3CPE matchmatch criteria
cpe:2.3:a:libguestfs:libguestfs:1.5.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 49th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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

Patch Available

Vendor Patches (2)

fedorapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libguestfs-1:1.7.17-17.el6
View patch

Vendor Advisories (1)

redhatCVE-2010-3851Low

libguestfs: missing disk format specifier when adding a disk

Oct 14, 2010

References

lists.fedoraproject.org / pipermail/package-announce/2010-November/050237.html
Patch
lists.fedoraproject.org / pipermail/package-announce/2010-November/050742.html
rwmj.wordpress.com / 2010/10/23/new-libguestfs-stable-versions
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/41797
Vendor Advisory
secunia.com / advisories/42235
redhat.com / archives/libguestfs/2010-October/msg00036.html
redhat.com / archives/libguestfs/2010-October/msg00037.html
redhat.com / archives/libguestfs/2010-October/msg00041.html
Patch
redhat.com / support/errata/RHSA-2011-0586.html
securityfocus.com / bid/44166
vupen.com / english/advisories/2010/2874
Vendor Advisory
vupen.com / english/advisories/2010/2963