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CVE-2009-3722
The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current…
High7.1EPSS 2.3%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register, which allows guest OS users to cause a denial of service (trap) on the host OS via a crafted application.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 2.3% · top 17% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
n/a
- affected n/a
References (12)
- oval:org.mitre.oval:def:9892 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- [oss-security] 20091029 CVE request: kvm: check cpl before emulating debug register access (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-864-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- MDVSA-2010:198 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=531660 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2010:0126 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20091029 Re: CVE request: kvm: check cpl before emulating debug register access (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 37221 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0a79b009525b160081d75cef5dbf45817956acf2 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-3722)Record last updated .