What is CVE-2026-82971?

CVE-2026-82971 is a critical-severity vulnerability in Qvidium Opera11, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 10.0/10. Published 2026-08-31.

How severe is CVE-2026-82971?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Qvidium Opera11

CVE-2026-82971

A vulnerability was determined in QVidium Opera11 3.3.2a26-Ax4x-opera11. This affects an unknown part of the file /cgi-bin/net_tr.cgi of the component CGI Script. This manipulation of the argument ipaddr causes command injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor explains: "QVidium has now closed its doors and no longer will be able to sell products or provide support." This vulnerability only affects products that are no longer supported by the maintainer.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Qvidium Opera11 — versions 3.3.2a26-Ax4x-opera11

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-82971?: CVE-2026-82971 is a critical-severity vulnerability in Qvidium Opera11, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 10.0/10. Published 2026-08-31.
How severe is CVE-2026-82971?: Critical severity. CVSS v3 base score is 10.0 out of 10.