What is CVE-2026-51082?

CVE-2026-51082 is a high-severity vulnerability in N/a, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.2/10. Published 2026-07-17.

How severe is CVE-2026-51082?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in N/a

CVE-2026-51082

A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call "vncproxy" to hijack a VNC session that is established in parallel by a different user for a different VM.

Vulnerability class: Race Condition

EPSS: 0.004 (31.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-51082?: CVE-2026-51082 is a high-severity vulnerability in N/a, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.2/10. Published 2026-07-17.
How severe is CVE-2026-51082?: High severity. CVSS v3 base score is 7.2 out of 10.