Servers and applications
CVE-2012-4536
The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.
- Severity
- Low 2.1
- Published
- 21 Nov 2012
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 0.4% in the next 30 daysHigher than 36% of CVEs. EPSS by FIRST, 12 Nov 2026
- Attack
- Needs local access · No login needed
- Attacker can
- Slow it down
- CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:P- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
XenServers and applications · cpe:o:xen:xen |
|