UpHeron
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Servers and applications

CVE-2012-4535

Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an "inappropriate deadline."

Severity
Low 1.9
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 34% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Needs local access · No login needed
Attacker can
Slow it down
CVSS vector
AV:L/AC:M/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.2.0
  • Version 4.1.3
  • Version 4.1.2
  • Version 4.1.1
All 15 release lines
  • Version 3.4.0
  • Version 3.4.1
  • Version 3.4.2
  • Version 3.4.3
  • Version 3.4.4
  • Version 4.0.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3
  • Version 4.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-4535
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-4535