cve.bz

CVE-2021-3839

7.5 highEPSS 1.7%

High (7.5). EPSS 1.7% chance of exploitation in the next 30 days.

A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg->payload.inflight.num_queues`, possibly causing out-of-bounds memory read/write. Any software using DPDK vhost library may crash as a result of this vulnerability.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWEs
CWE-125, CWE-787
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON