# QEMU vulnerabilities

Source: https://junglewise.ai/threats/technologies/qemu  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/qemu.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 13 vulnerabilities in QEMU: 0 in the last 7 days and 2 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. Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 13 (0 critical, 0 exploited in the wild)

## About QEMU

QEMU is an open-source machine emulator and virtualizer that can emulate various CPU architectures and system configurations.

## Latest QEMU vulnerabilities

- [CVE-2026-93834: QEMU use-after-free in 9pfs subsystem with VM escape](https://junglewise.ai/threats/cve-2026-93834-a-use-after-free-vulnerability-was-found-in-qemu-s-9pfs-subsystem) (high, CVSS 8.8, published 25 Sep 2026)
- [CVE-2026-81627: QEMU VAPIC setup hypercall memory validation bypass](https://junglewise.ai/threats/cve-2026-81627-qemu-vapic-setup-hypercall-memory-validation-bypass) (high, CVSS 8.2, published 18 Sep 2026)
- [CVE-2026-3842: QEMU out-of-bounds write in hyperv/syndbg memory mapping](https://junglewise.ai/threats/cve-2026-3842-qemu-out-of-bounds-write-in-hyperv-syndbg-memory-mapping) (high, CVSS 7.8, published 16 Jul 2026)
- [CVE-2026-9539: freedesktop.org libslirp heap OOB read in TCP urgent data handling](https://junglewise.ai/threats/cve-2026-9539-freedesktop-org-libslirp-heap-oob-read-in-tcp-urgent-data-handling) (medium, CVSS 6.5, published 24 Jun 2026)
- [CVE-2026-3196: QEMU virtio-snd integer overflow in PCM_INFO requests](https://junglewise.ai/threats/cve-2026-3196-qemu-virtio-snd-integer-overflow-in-pcm-info-requests) (medium, CVSS 5.5, published 19 Jun 2026)
- [CVE-2026-3195: QEMU heap overflow in virtio-snd device](https://junglewise.ai/threats/cve-2026-3195-qemu-heap-overflow-in-virtio-snd-device) (high, CVSS 7.4, published 19 Jun 2026)
- [CVE-2026-48914: QEMU heap overflow in virtio-blk SCSI request handling](https://junglewise.ai/threats/cve-2026-48914-qemu-heap-overflow-in-virtio-blk-scsi-request-handling) (medium, CVSS 6.7, published 12 Jun 2026)
- [CVE-2026-2243: QEMU out-of-bounds read in VMDK image parsing](https://junglewise.ai/threats/cve-2026-2243-qemu-out-of-bounds-read-in-vmdk-image-parsing) (medium, CVSS 5.1, published 19 Feb 2026)
- [CVE-2025-12464: QEMU e1000 stack buffer overflow in loopback mode](https://junglewise.ai/threats/cve-2025-12464-qemu-e1000-stack-buffer-overflow-in-loopback-mode) (medium, CVSS 6.2, published 31 Oct 2025)
- [CVE-2025-11234: QEMU use-after-free in VNC WebSocket handshake](https://junglewise.ai/threats/cve-2025-11234-qemu-use-after-free-in-vnc-websocket-handshake) (high, CVSS 7.5, published 3 Oct 2025)
- [CVE-2024-3447: QEMU heap buffer overflow in SDHCI device emulation](https://junglewise.ai/threats/cve-2024-3447-qemu-heap-buffer-overflow-in-sdhci-device-emulation) (medium, CVSS 6, published 14 Nov 2024)
- [CVE-2023-3019: QEMU use-after-free in e1000e NIC emulation](https://junglewise.ai/threats/cve-2023-3019-qemu-use-after-free-in-e1000e-nic-emulation) (medium, CVSS 6, published 24 Jul 2023)
- [CVE-2016-9381: Xen QEMU race condition in shared ring processing](https://junglewise.ai/threats/cve-2016-9381-xen-qemu-race-condition-in-shared-ring-processing) (high, CVSS 7.5, published 23 Jan 2017)

## Most severe QEMU vulnerabilities

- [CVE-2026-93834: QEMU use-after-free in 9pfs subsystem with VM escape](https://junglewise.ai/threats/cve-2026-93834-a-use-after-free-vulnerability-was-found-in-qemu-s-9pfs-subsystem) (high, CVSS 8.8, published 25 Sep 2026)
- [CVE-2026-81627: QEMU VAPIC setup hypercall memory validation bypass](https://junglewise.ai/threats/cve-2026-81627-qemu-vapic-setup-hypercall-memory-validation-bypass) (high, CVSS 8.2, published 18 Sep 2026)
- [CVE-2026-3842: QEMU out-of-bounds write in hyperv/syndbg memory mapping](https://junglewise.ai/threats/cve-2026-3842-qemu-out-of-bounds-write-in-hyperv-syndbg-memory-mapping) (high, CVSS 7.8, published 16 Jul 2026)
- [CVE-2025-11234: QEMU use-after-free in VNC WebSocket handshake](https://junglewise.ai/threats/cve-2025-11234-qemu-use-after-free-in-vnc-websocket-handshake) (high, CVSS 7.5, published 3 Oct 2025)
- [CVE-2016-9381: Xen QEMU race condition in shared ring processing](https://junglewise.ai/threats/cve-2016-9381-xen-qemu-race-condition-in-shared-ring-processing) (high, CVSS 7.5, published 23 Jan 2017)
- [CVE-2026-3195: QEMU heap overflow in virtio-snd device](https://junglewise.ai/threats/cve-2026-3195-qemu-heap-overflow-in-virtio-snd-device) (high, CVSS 7.4, published 19 Jun 2026)
- [CVE-2026-48914: QEMU heap overflow in virtio-blk SCSI request handling](https://junglewise.ai/threats/cve-2026-48914-qemu-heap-overflow-in-virtio-blk-scsi-request-handling) (medium, CVSS 6.7, published 12 Jun 2026)
- [CVE-2026-9539: freedesktop.org libslirp heap OOB read in TCP urgent data handling](https://junglewise.ai/threats/cve-2026-9539-freedesktop-org-libslirp-heap-oob-read-in-tcp-urgent-data-handling) (medium, CVSS 6.5, published 24 Jun 2026)
- [CVE-2025-12464: QEMU e1000 stack buffer overflow in loopback mode](https://junglewise.ai/threats/cve-2025-12464-qemu-e1000-stack-buffer-overflow-in-loopback-mode) (medium, CVSS 6.2, published 31 Oct 2025)
- [CVE-2024-3447: QEMU heap buffer overflow in SDHCI device emulation](https://junglewise.ai/threats/cve-2024-3447-qemu-heap-buffer-overflow-in-sdhci-device-emulation) (medium, CVSS 6, published 14 Nov 2024)

## Vulnerabilities per week

Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 1 | 0 | 0 |
| 21 Sep 2026 | 1 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "QEMU vulnerabilities", https://junglewise.ai/threats/technologies/qemu, 9 November 2026.