CVE-2020-10703: A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for f
Noroxi assessment
Priority: Monitor (action score 27/100)
- 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: 2.3% (FIRST EPSS); higher than 84% of all records.
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: hivex (AlmaLinux:8) 1.3.18-20.module_el8.3.0+2048+e7a0a3ea; hivex-devel (AlmaLinux:8) 1.3.18-20.module_el8.3.0+2048+e7a0a3ea; libguestfs-winsupport (AlmaLinux:8) 8.2-1.module_el8.5.0+2608+72063365, 8.2-1.module_el8.3.0+2048+e7a0a3ea.
Low priority for now. Upgrade to hivex (AlmaLinux:8) 1.3.18-20.module_el8.3.0+2048+e7a0a3ea; hivex-devel (AlmaLinux:8) 1.3.18-20.module_el8.3.0+2048+e7a0a3ea; libguestfs-winsupport (AlmaLinux:8) 8.2-1.module_el8.5.0+2608+72063365, 8.2-1.module_el8.3.0+2048+e7a0a3ea 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
Primary sources: NVD · CVE.org · FIRST EPSS
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.
- Published
- Jun 2, 2020
- Updated
- Jun 16, 2026
- EPSS
- 2.3% · 84th percentile
- CWE
- CWE-476
Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.3%
CNA vs NVD score
- NVD
- 6.5
- CNA · redhat
- 6.5
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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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 |
|---|---|---|
| redhat | libvirt | cpe:2.3:a:redhat:libvirt |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- redhat libvirt3.10.0 and later · before 6.0.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
libvirt libvirt
- >= 3.10.0, < 6.0.0affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | hivex | before 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | hivex-devel | before 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libguestfs-winsupport | before 8.2-1.module_el8.5.0+2608+72063365 | 8.2-1.module_el8.5.0+2608+72063365 |
| AlmaLinux:8 | libguestfs-winsupport | before 8.2-1.module_el8.3.0+2048+e7a0a3ea | 8.2-1.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libiscsi | before 1.18.0-8.module_el8.5.0+2608+72063365 | 1.18.0-8.module_el8.5.0+2608+72063365 |
| AlmaLinux:8 | libiscsi | before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libiscsi | before 1.18.0-8.module_el8.6.0+2880+7d9e3703 | 1.18.0-8.module_el8.6.0+2880+7d9e3703 |
| AlmaLinux:8 | libiscsi-devel | before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libiscsi-devel | before 1.18.0-8.module_el8.5.0+2608+72063365 | 1.18.0-8.module_el8.5.0+2608+72063365 |
| AlmaLinux:8 | libiscsi-devel | before 1.18.0-8.module_el8.6.0+2880+7d9e3703 | 1.18.0-8.module_el8.6.0+2880+7d9e3703 |
| AlmaLinux:8 | libiscsi-utils | before 1.18.0-8.module_el8.6.0+2880+7d9e3703 | 1.18.0-8.module_el8.6.0+2880+7d9e3703 |
| AlmaLinux:8 | libiscsi-utils | before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libiscsi-utils | before 1.18.0-8.module_el8.5.0+2608+72063365 | 1.18.0-8.module_el8.5.0+2608+72063365 |
| AlmaLinux:8 | libnbd | before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libnbd | before 1.2.2-1.module_el8.5.0+2608+72063365 | 1.2.2-1.module_el8.5.0+2608+72063365 |
| AlmaLinux:8 | libnbd-devel | before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libnbd-devel | before 1.2.2-1.module_el8.5.0+2608+72063365 | 1.2.2-1.module_el8.5.0+2608+72063365 |
| AlmaLinux:8 | libvirt | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libvirt-admin | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libvirt-bash-completion | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libvirt-client | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libvirt-daemon | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libvirt-daemon-config-network | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
| AlmaLinux:8 | libvirt-daemon-config-nwfilter | before 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea |
+96
Same product
redhat: all recordsOther highest-scoring records for the same primary product.
- CVE-2016-5008libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string, which allows remote 40Plan
- CVE-2020-14339A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process.35Monitor
- CVE-2019-10132A vulnerability was found in libvirt >= 4.1.0 in the virtlockd-admin.socket and virtlogd-admin.socket systemd units.35Monitor
Published before and after this one in the same product
- ← EarlierCVE-2019-20485Mar 18, 2020 · qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers t22Monitor
- ← EarlierCVE-2020-12430Apr 28, 2020 · An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemu_driver.c in libvirt 4.10.0 though 6.x before 6.1.0.27Monitor
- Later →CVE-2020-25637Oct 6, 2020 · A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about net26Monitor
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 |
|---|---|---|
| almalinux:hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:hivex-devel | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libguestfs-winsupport | 8.2-1.module_el8.5.0+2608+72063365 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libiscsi | 1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libiscsi-devel | 1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libiscsi-utils | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libnbd | 1.2.2-1.module_el8.5.0+2608+72063365 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libnbd-devel | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libvirt | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libvirt-admin | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libvirt-bash-completion | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| almalinux:libvirt-client | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea · AlmaLinux:8 | Package registry (OSV) |
| debian:libvirt | 6.0.0-2 · Debian:12 | Package registry (OSV) |
| red hat:libvirt | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-bash-completion | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-client | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-config-network | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-config-nwfilter | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-driver-interface | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-driver-lxc | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-driver-network | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-driver-nodedev | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-driver-nwfilter | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:libvirt-daemon-driver-qemu | 0:4.5.0-36.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| rocky linux:hivex | 0:1.3.18-20.module+el8.4.0+534+4680a14e · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:libguestfs-winsupport | 0:8.2-1.module+el8.4.0+534+4680a14e · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:libiscsi | 0:1.18.0-8.module+el8.7.0+1084+97b81f61 · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:libnbd | 0:1.2.2-1.module+el8.4.0+534+4680a14e · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:libvirt-dbus | 0:1.3.0-2.module+el8.7.0+1084+97b81f61 · Rocky Linux:8 | Package registry (OSV) |
+8
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.
No history yet (it accumulates with the daily EPSS job).
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
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (6 more)Show less
- libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=5d5c732d748d644ec14626bce448e84bdc4bd93e
- libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=7aa0e8c0cb8a6293d0c6f7e3d29c13b96dec2129
- libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=dfff16a7c261f8d28e3abe60a47165f845fa952f
- lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/
- security.netapp.com/advisory/ntap-20200608-0005/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.