CVE-2023-3301
A malicious guest could use this time window to trigger an assertion and cause a denial of service.
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.
- CVSS 3.1
- 5.6 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.26% probability · 17th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617, CWE-362
- Affected
- qemu/qemu · redhat/enterprise linux
- Source
- secalert@redhat.com
EPSS 0.3% since 26 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
- https://access.redhat.com/security/cve/CVE-2023-3301Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2215784Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231020-0008/Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-3301Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2215784Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231020-0008/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.