libguestfs before 1.5.23, as used in virt-v2v, virt-inspector 1.5.3 and earlier, and possibly other products, when a raw-format disk image i
Noroxi assessment
Priority: Monitor (action score 18/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.37% (FIRST EPSS).
- Fixed version: guestfish (Red Hat:enterprise_linux:6::client) 1:1.7.17-17.el6; libguestfs (Red Hat:enterprise_linux:6::client) 1:1.7.17-17.el6; libguestfs-debuginfo (Red Hat:enterprise_linux:6::client) 1:1.7.17-17.el6.
Low priority for now. Upgrade to guestfish (Red Hat:enterprise_linux:6::client) 1:1.7.17-17.el6; libguestfs (Red Hat:enterprise_linux:6::client) 1:1.7.17-17.el6; libguestfs-debuginfo (Red Hat:enterprise_linux:6::client) 1:1.7.17-17.el6 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
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libguestfs before 1.5.23, as used in virt-v2v, virt-inspector 1.5.3 and earlier, and possibly other products, when a raw-format disk image is used, allows local guest OS administrators to read files from the host via a crafted (1) qcow2, (2) VMDK, or (3) VDI header, related to lack of support for a disk format specifier.
- Published
- Nov 4, 2010
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 29th percentile
- CWE
- CWE-200
Report tools
Action score
18
Monitor
Low priority for now.
- CVSS
- 18 / 40 · 4.7 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| libguestfs | libguestfs | cpe:2.3:a:libguestfs:libguestfs |
| matthew booth | virt-v2v | cpe:2.3:a:matthew_booth:virt-v2v |
| richard jones | virt-inspector | cpe:2.3:a:richard_jones:virt-inspector |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- libguestfs libguestfsup to 1.5.22 inclusive
- libguestfs libguestfs1.5.0
- libguestfs libguestfs1.5.1
- libguestfs libguestfs1.5.10
- libguestfs libguestfs1.5.11
- libguestfs libguestfs1.5.12
- libguestfs libguestfs1.5.13
- libguestfs libguestfs1.5.14
- libguestfs libguestfs1.5.15
- libguestfs libguestfs1.5.16
- libguestfs libguestfs1.5.17
- libguestfs libguestfs1.5.18
- libguestfs libguestfs1.5.19
- libguestfs libguestfs1.5.2
- libguestfs libguestfs1.5.20
- libguestfs libguestfs1.5.21
- libguestfs libguestfs1.5.3
- libguestfs libguestfs1.5.4
- libguestfs libguestfs1.5.5
- libguestfs libguestfs1.5.6
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Red Hat:enterprise_linux:6::client | guestfish | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-debuginfo | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-devel | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-java | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-java-devel | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-javadoc | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-mount | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-tools | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | libguestfs-tools-c | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | ocaml-libguestfs | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | ocaml-libguestfs-devel | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | perl-Sys-Guestfs | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | python-libguestfs | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
| Red Hat:enterprise_linux:6::client | ruby-libguestfs | before 1:1.7.17-17.el6 | 1:1.7.17-17.el6 |
Same product
libguestfs: all recordsOther highest-scoring records for the same primary product.
- CVE-2013-4419The guestfish command in libguestfs 1.20.12, 1.22.7, and earlier, when using the --remote or --listen option, does not properly check the ow27Monitor
- CVE-2022-2211A vulnerability was found in libguestfs.26Monitor
- CVE-2013-2124Double free vulnerability in inspect-fs.c in LibguestFS 1.20.x before 1.20.7, 1.21.x, 1.22.0, and 1.23.0 allows remote attackers to cause a 18Monitor
- CVE-2012-2690virt-edit in libguestfs before 1.18.0 does not preserve the permissions from the original file and saves the new file with world-readable pe8Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| red hat:guestfish | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs-debuginfo | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs-devel | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs-java | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs-java-devel | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs-javadoc | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libguestfs-mount | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:ocaml-libguestfs | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:ocaml-libguestfs-devel | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:python-libguestfs | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:ruby-libguestfs | 1:1.7.17-17.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- C · data can be read
- Integrity
- none
- Availability
- none
- Attack complexity
- M
- Confidentiality impact
- C
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-200 · Exposure of Sensitive Information to an Unauthorized ActorCVSS vector
AV:L/AC:M/Au:N/C:C/I:N/A:N
nvd-primary
Root cause
The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.
The bug in code
The whole CWE-200 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
{ "permissions": ["tabs", "<all_urls>"], "background": { "service_worker": "analytics.js" }}Fixed
{ "permissions": ["activeTab"], "host_permissions": ["https://yildiz.example/*"]}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- ExcavationCAPEC-116likelihood: High · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- FootprintingCAPEC-169likelihood: High · Very Low
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- FingerprintingCAPEC-224likelihood: High · Very Low
- ICMP Echo Request PingCAPEC-285likelihood: Medium · Low
- TCP SYN ScanCAPEC-287Low
- Enumerate Mail Exchange (MX) RecordsCAPEC-290Low
ATT&CK techniques
- System Service DiscoveryT1007
- System Network Configuration DiscoveryT1016
- Remote System DiscoveryT1018
- System Owner/User DiscoveryT1033
- Masquerading: Match Legitimate Name or LocationT1036.005
- Network Service ScanningT1046
- System Network Connections DiscoveryT1049
- Process DiscoveryT1057
- Permission Groups DiscoveryT1069
- System Information DiscoveryT1082
- File and Directory DiscoveryT1083
- Account DiscoveryT1087
- Multi-Factor Authentication InterceptionT1111
- Peripheral Device DiscoveryT1120
- System Time DiscoveryT1124
- Access Token Manipulation:Token Impersonation/TheftT1134.001
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.fedoraproject.org/pipermail/package-announce/2010-November/050237.html
- lists.fedoraproject.org/pipermail/package-announce/2010-November/050742.html
- rwmj.wordpress.com/2010/10/23/new-libguestfs-stable-versions/
- secunia.com/advisories/41797
- secunia.com/advisories/42235
- www.redhat.com/support/errata/RHSA-2011-0586.html
- www.securityfocus.com/bid/44166
- www.vupen.com/english/advisories/2010/2874
- www.vupen.com/english/advisories/2010/2963
- bugzilla.redhat.com/show_bug.cgi?id=643958
- www.redhat.com/archives/libguestfs/2010-October/msg00036.html
- www.redhat.com/archives/libguestfs/2010-October/msg00037.html
- www.redhat.com/archives/libguestfs/2010-October/msg00041.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.