# Qemu vulnerabilities

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

Junglewise Threat Intelligence has tracked 7 vulnerabilities in Qemu: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-81627, was published on 18 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 7 (0 critical, 0 exploited in the wild)

## About Qemu

A free and open-source hypervisor that performs hardware virtualization.

## Latest Qemu vulnerabilities

- [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-2026-12080: QEMU Guest Agent privilege escalation in guest-ssh-add-authorized-keys](https://junglewise.ai/threats/cve-2026-12080-qemu-guest-agent-privilege-escalation-in-guest-ssh-add-authorized) (high, CVSS 7.3, published 20 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-2026-48914: 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-2025-11234: 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)

## Most severe Qemu vulnerabilities

- [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-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-2026-12080: QEMU Guest Agent privilege escalation in guest-ssh-add-authorized-keys](https://junglewise.ai/threats/cve-2026-12080-qemu-guest-agent-privilege-escalation-in-guest-ssh-add-authorized) (high, CVSS 7.3, published 20 Jul 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-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)

## Vulnerabilities per week

Nothing in the last four weeks, down from 1 vulnerability 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 | 0 | 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 |

## Qemu technologies

- [QEMU](https://junglewise.ai/threats/technologies/qemu): 13 vulnerabilities

## 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/vendors/qemu, 9 November 2026.