NULL pointer dereference in libvirt
Priority LOW 37CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
A NULL pointer deference flaw was found in the way libvirt from 2.5.0 to 3.0.0 handled empty drives. A remote authenticated attacker could use this flaw to crash libvirtd daemon resulting in denial of service.
Why it matters now
EPSS 0.01529 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The libvirt Project | libvirt | from 2.5.0 to 3.0.0 | — | No fix listed | CNA |
- libvirt VendorThe libvirt Project Affected from 2.5.0 to 3.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Virtualization 3
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2017-2635
- 2026-10-03 Alias added: GHSA-6wgv-m454-22mq
References
More Red Hat Libvirt vulnerabilities
- TI-2016-04328 libvirt before 2.0.0 improperly disables password checking when the password on a VNC… CVSS 3.0CRITICAL 9.8
- TI-2019-07455 Incorrect permission assignment in libvirt CVSS 3.0HIGH 8.8
- TI-2013-03857 The virConnectDomainXMLToNative API function in libvirt 1.1.0 through 1.1.3 checks for… CVSS 2.0HIGH 8.5
- TI-2018-04154 qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory… CVSS 3.0HIGH 7.5
- TI-2017-14571 libvirt version 2.3.0 and later is vulnerable to a bad default configuration of… CVSS 3.1HIGH 8.1
- TI-2013-00105 Use-after-free vulnerability in the virNetMessageFree function in… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2017-2635 · CVE Program
- CVE-2017-2635 · NVD
- FIRST EPSS
- GHSA-6wgv-m454-22mq · GitHub Advisory Database · CC BY 4.0
- CVE-2017-2635 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences