The MMIO instruction decoder in the Xen hypervisor in the Linux kernel 2.6.18 in Red Hat…
Priority LOW 18CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The MMIO instruction decoder in the Xen hypervisor in the Linux kernel 2.6.18 in Red Hat Enterprise Linux (RHEL) 5 allows guest OS users to cause a denial of service (32-bit guest OS crash) via vectors that trigger an unspecified instruction emulation.
Why it matters now
EPSS 0.02439 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* | 5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:*:client:*:*:*:*:* | 5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:*:server:*:*:*:*:* | 5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:ga:*:*:*:*:*:* | 5 ga | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:ga:client:*:*:*:*:* | 5 ga | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:ga:server:*:*:*:*:* | 5 ga | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:linux:linux_kernel:2.6.18:*:*:*:*:*:*:* | 2.6.18 | Running on | Linux |
- cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* Versions 5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:*:client:*:*:*:*:* Versions 5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:*:server:*:*:*:*:* Versions 5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:ga:*:*:*:*:*:* Versions 5 ga Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:ga:client:*:*:*:*:* Versions 5 ga Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:ga:server:*:*:*:*:* Versions 5 ga Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:linux:linux_kernel:2.6.18:*:*:*:*:*:*:* Versions 2.6.18 Running on ·Linux
Remediation
Red Hat 1 advisory
- RHSA-2010:0398 Released 2010-05-06 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-194.3.1.el5, kernel-2.6.18-194.3.1.el5.ia64, kernel-PAE-2.6.18-194.3.1.el5 +14
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-194.3.1.el5, kernel-PAE-2.6.18-194.3.1.el5, kernel-PAE-devel-2.6.18-194.3.1.el5 +6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0398 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0398 |
Not affected: 2 products
- Red Hat Enterprise Linux (v. 5 server)
- Red Hat Enterprise Linux Desktop (v. 5 client)
Timeline
- 2026-10-02 Threatist record created from CVE-2010-0730
- 2026-10-03 Alias added: GHSA-f4p2-64fc-c2r9
References
Patch 1
More Red Hat Enterprise Linux vulnerabilities
- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
Sources
- CVE-2010-0730 · CVE Program
- CVE-2010-0730 · NVD
- FIRST EPSS
- GHSA-f4p2-64fc-c2r9 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-0730 · 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