The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
CVE-2016-9922
Score 5.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EPSS
- 33.2%
- KEV
- Not listed
Published
March 27, 2017
Last Modified
May 13, 2026
References (16)
- secalert@redhathttp://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca9024572804ba751aa1a7e70
- secalert@redhathttp://www.openwall.com/lists/oss-security/2016/12/09/1
- secalert@redhathttp://www.securityfocus.com/bid/94803
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:2392
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:2408
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1334398
- secalert@redhathttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- secalert@redhathttps://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html
- af854a3a-2127-422b-91ae-364da2661108http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca9024572804ba751aa1a7e70
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/12/09/1
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94803
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2392
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2408
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1334398
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
Vendor Advisories for CVE-2016-9922(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | qemu-system-x86 (1:2.6.1+dfsg-0ubuntu5.4) @ yakkety | 2026-05-22 | ubuntu |
| redhat | qemu-kvm-rhev-10:2.9.0-10.el7 | 2017-08-01 | redhat |
| redhat | qemu-kvm-rhev-10:2.9.0-14.el7 | 2017-08-01 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 10× in last 7d / 39× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-06-23 08:00 UTCOSV refresh
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- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-06-06 07:04 UTCOSV refresh
- 2026-06-05 22:44 UTCEPSS rescore
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- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 15:00 UTCEG score recompute
- 2026-05-22 15:00 UTCVendor advisory
- 2026-05-22 15:00 UTCGHSA enrichment
- 2026-05-22 11:01 UTCOSV refresh
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
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- 2026-05-18 21:30 UTCEPSS rescore
Frequently asked(5)
What is CVE-2016-9922?
When was CVE-2016-9922 disclosed?
Is CVE-2016-9922 actively exploited?
What is the CVSS score of CVE-2016-9922?
How do I remediate CVE-2016-9922?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2016-9922
Is Your Infrastructure Affected by CVE-2016-9922?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.