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CVE-2012-3515

Qemu, as used in Xen 4.0, 4.1 and possibly other products, when emulating certain devices with a virtual console backend, allows local OS guest users to gain privileges via a crafted escape VT100 sequence that triggers the overwrite of a "device model's address space."

Severity
High 7.2
Published
23 Nov 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.5% in the next 30 daysHigher than 45% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Needs local access · No login needed
Attacker can
Read data · Change data · Take it down
CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.0.0
  • Version 4.1.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-3515
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-3515