Technology · Qemu
QEMU vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 13 vulnerabilities in QEMU: 1 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-93834, was published on 25 September 2026.
- Last 7 days
- 1
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About QEMU
A generic and open source machine emulator and virtualizer.
Latest QEMU vulnerabilities
- CVE-2026-93834: QEMU use-after-free in 9pfs subsystem with VM escapehighCVSS 8.8
- CVE-2026-81627: QEMU VAPIC setup hypercall memory validation bypasshighCVSS 8.2EPSS 0.2%
- CVE-2026-3842: QEMU out-of-bounds write in hyperv/syndbg memory mappinghighCVSS 7.8
- CVE-2026-9539: freedesktop.org libslirp heap OOB read in TCP urgent data handlingmediumCVSS 6.5
- CVE-2026-3196: QEMU virtio-snd integer overflow in PCM_INFO requestsmediumCVSS 5.5
- CVE-2026-3195: QEMU heap overflow in virtio-snd devicehighCVSS 7.4
- CVE-2026-48914: QEMU heap overflow in virtio-blk SCSI request handlingmediumCVSS 6.7
- CVE-2026-2243: QEMU out-of-bounds read in VMDK image parsingmediumCVSS 5.1EPSS 0.1%
- CVE-2025-12464: QEMU e1000 stack buffer overflow in loopback modemediumCVSS 6.2EPSS 0.1%
- CVE-2025-11234: QEMU use-after-free in VNC WebSocket handshakehighCVSS 7.5EPSS 0.2%
- CVE-2024-3447: QEMU heap buffer overflow in SDHCI device emulationmediumCVSS 6
- CVE-2023-3019: QEMU use-after-free in e1000e NIC emulationmediumCVSS 6
- CVE-2016-9381: Xen QEMU race condition in shared ring processinghighCVSS 7.5
Most severe QEMU vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-93834: QEMU use-after-free in 9pfs subsystem with VM escapehighCVSS 8.8
- CVE-2026-81627: QEMU VAPIC setup hypercall memory validation bypasshighCVSS 8.2EPSS 0.2%
- CVE-2026-3842: QEMU out-of-bounds write in hyperv/syndbg memory mappinghighCVSS 7.8
- CVE-2025-11234: QEMU use-after-free in VNC WebSocket handshakehighCVSS 7.5EPSS 0.2%
- CVE-2016-9381: Xen QEMU race condition in shared ring processinghighCVSS 7.5
- CVE-2026-3195: QEMU heap overflow in virtio-snd devicehighCVSS 7.4
- CVE-2026-48914: QEMU heap overflow in virtio-blk SCSI request handlingmediumCVSS 6.7
- CVE-2026-9539: freedesktop.org libslirp heap OOB read in TCP urgent data handlingmediumCVSS 6.5
- CVE-2025-12464: QEMU e1000 stack buffer overflow in loopback modemediumCVSS 6.2EPSS 0.1%
- CVE-2024-3447: QEMU heap buffer overflow in SDHCI device emulationmediumCVSS 6
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 1 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 1 | 0 | |
| 21 Sep 2026 | 1 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/qemu.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "QEMU vulnerabilities", https://junglewise.ai/threats/technologies/qemu, 26 September 2026.