CVE-2011-2901
MEDIUM · CVSS 5.5EPSS 0.6%EU EUVD
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.
Key facts
- CVSS score
- 5.5 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:A/AC:L/Au:S/C:N/I:N/A:C- Weakness (CWE)
- CWE-399
- EPSS score
- 0.6% (48th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-2874)
- Published
- October 1, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-2874 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- xen / xen
- xen / xen
- xen / xen
- xen / xen
- xen / xen
- xen / xen
- xen / xen
- xen / xen
- xen / xen
- xen / xen
References
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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