UpHeron
All vulnerabilities

Servers and applications

CVE-2017-2620

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

Severity
Critical 9.9
Published
27 Jul 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.6% in the next 30 daysHigher than 89% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.7.1-r7
  • Version 4.7.1-r6
  • Version 4.7.1-r5
  • Version 4.7.1-r4
All 8 release lines
  • Every version up to 4.7.1
  • Version 4.7.1-r1
  • Version 4.7.1-r2
  • Version 4.7.1-r3
  • Version 4.7.1-r4
  • Version 4.7.1-r5
  • Version 4.7.1-r6
  • Version 4.7.1-r7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-2620
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-2620