CVE-2026-6721: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in IBM Concert
IBM Concert versions 1.0.0 through 3.0.0 contain an OS command injection vulnerability that allows unauthenticated remote attackers to execute arbitrary commands on the underlying system. This vulnerability arises from improper neutralization of special elements in OS commands. Exploitation results in remote code execution with the privileges of the application.
AI Analysis
Technical Summary
CVE-2026-6721 is an OS command injection vulnerability (CWE-78) affecting IBM Concert versions 1.0.0 through 3.0.0. An unauthenticated remote attacker can supply specially crafted input that is incorporated into operating system commands without proper sanitization, leading to arbitrary command execution on the host system. This allows the attacker to execute code remotely with the same privileges as the IBM Concert application.
Potential Impact
Successful exploitation allows remote code execution with full control over the affected system under the application's privileges. This can lead to complete compromise of the system, data theft, or further attacks within the environment. The vulnerability is critical with a CVSS 3.1 base score of 9.8, indicating high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the IBM Concert application and monitor for suspicious activity related to command execution attempts.
CVE-2026-6721: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in IBM Concert
Description
IBM Concert versions 1.0.0 through 3.0.0 contain an OS command injection vulnerability that allows unauthenticated remote attackers to execute arbitrary commands on the underlying system. This vulnerability arises from improper neutralization of special elements in OS commands. Exploitation results in remote code execution with the privileges of the application.
CVSS v3.1
Score 9.8critical
Affected software
IBM
Concert
cpe:2.3:a:ibm:concert:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:concert:3.0.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6721 is an OS command injection vulnerability (CWE-78) affecting IBM Concert versions 1.0.0 through 3.0.0. An unauthenticated remote attacker can supply specially crafted input that is incorporated into operating system commands without proper sanitization, leading to arbitrary command execution on the host system. This allows the attacker to execute code remotely with the same privileges as the IBM Concert application.
Potential Impact
Successful exploitation allows remote code execution with full control over the affected system under the application's privileges. This can lead to complete compromise of the system, data theft, or further attacks within the environment. The vulnerability is critical with a CVSS 3.1 base score of 9.8, indicating high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the IBM Concert application and monitor for suspicious activity related to command execution attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-04-20T19:32:11.770Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab48379f7a7c54106b23ca3
Added to database: 09/24/2026, 01:57:13 UTC
Last enriched: 09/24/2026, 01:58:55 UTC
Last updated: 09/24/2026, 03:48:38 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.