Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which…
Priority LOW 32CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
Why it matters now
EPSS 0.01804 78th 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:* | 4.6.0 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:* | 4.6.1 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.6.2:*:*:*:*:*:*:* | 4.6.2 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:* | 4.6.4 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:* | 4.6.5 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:* | 4.7.1 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:* | 4.8.0 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:* | 4.8.1 | Vulnerable | Xen |
- cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:* Versions 4.6.0 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:* Versions 4.6.1 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.6.2:*:*:*:*:*:*:* Versions 4.6.2 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:* Versions 4.6.4 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:* Versions 4.6.5 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:* Versions 4.7.1 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:* Versions 4.8.0 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:* Versions 4.8.1 Vulnerable ·Xen
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: 1 product
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2017-10923
- 2026-10-03 Alias added: GHSA-83mw-xpgw-63qr
References
More Xen vulnerabilities
- TI-2012-00210 The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix… CVSS 2.0HIGH 7.2
- TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
- TI-2015-04333 The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used… CVSS 2.0HIGH 9.3
- TI-2015-06741 The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows… CVSS 3.1CRITICAL 10.0
- TI-2018-06436 A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures… CVSS 3.0HIGH 7.8
- TI-2024-20522 x86: Incorrect logic for BTC/SRSO mitigations CVSS 3.1HIGH 7.5
Sources
- CVE-2017-10923 · CVE Program
- CVE-2017-10923 · NVD
- FIRST EPSS
- GHSA-83mw-xpgw-63qr · GitHub Advisory Database · CC BY 4.0
- CVE-2017-10923 · 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