Authenticated Control Language command injection via insufficient validation
Published Aug 12, 2026 · Updated Aug 12, 2026
Command injection in Navigator on IBM OS 7.3 through 7.6 allows remote attackers with credentials to execute arbitrary Control Language commands. Navigator passes attacker-supplied input to Control Language command execution without sufficient validation; the handler, parameter, and failed check remain undisclosed. Network access and a valid platform profile are required, and successful exploitation runs commands with the authority assigned to Navigator.
Summary
What happened
Command injection in Navigator on IBM OS 7.3 through 7.6 allows remote attackers with credentials to execute arbitrary Control Language commands. Navigator passes attacker-supplied input to Control Language command execution without sufficient validation; the handler, parameter, and failed check remain undisclosed. Network access and a valid platform profile are required, and successful exploitation runs commands with the authority assigned to Navigator.
The record
- CVE
- CVE-2026-18235
- Published
- Aug 12, 2026
- Updated
- Aug 12, 2026
- Vendor
- IBM
- Product
- IBM i
- Classifications
- CWE-78, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 12, 2026CVE publishedPublication date reported by the CVE source.
- Aug 12, 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.
- Affected versionversion=7.3
- Affected versionversion=7.4
- Affected versionversion=7.5
- Affected versionversion=7.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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