CVE-2026-82971Public exploitNetwork attack vector

Unauthenticated command execution via ipaddr injection

Published Aug 31, 2026 · Updated Sep 1, 2026

Command injection in QVidium Opera11 3.3.2a26-Ax4x-opera11 allows remote attackers to execute commands via a crafted ipaddr value. The /cgi-bin/net_tr.cgi CGI script accepts the manipulated argument without neutralizing operating-system command syntax. The endpoint is network-reachable without authentication, and successful exploitation grants command execution on the appliance.

CVSS severityUnavailable
Unscored
EPSS probability1.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in QVidium Opera11 3.3.2a26-Ax4x-opera11 allows remote attackers to execute commands via a crafted ipaddr value. The /cgi-bin/net_tr.cgi CGI script accepts the manipulated argument without neutralizing operating-system command syntax. The endpoint is network-reachable without authentication, and successful exploitation grants command execution on the appliance.

The record

CVE
CVE-2026-82971
Published
Aug 31, 2026
Updated
Sep 1, 2026
Vendor
Opera
Product
Opera
Classifications
CWE-77, CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.2a26-Ax4x-opera11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Opera · Operaversion=3.3.2a26-Ax4x-opera11

Published CVSS scores

10.0VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
10.0VulDB CNAAV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
10.0VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Command Injection
CWE-74Injection
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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