CVE-2018-7858
Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when…
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
Description
Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.61% probability · 49th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- qemu/qemu · opensuse/leap · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 0.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlMailing List, Release Notes, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/03/09/1Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/103350Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1369Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1416Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2162Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1553402Issue Tracking, Third Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2018-03/msg02174.htmlMailing List, Patch, Vendor Advisory
- https://usn.ubuntu.com/3649-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlMailing List, Release Notes, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/03/09/1Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/103350Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1369Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1416Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2162Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1553402Issue Tracking, Third Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2018-03/msg02174.htmlMailing List, Patch, Vendor Advisory
- https://usn.ubuntu.com/3649-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.