CVE-2026-18193: CWE-269 Improper Privilege Management
CVE-2026-18193 is a high severity vulnerability affecting IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves improper privilege management where a remote attacker could bypass security restrictions by exploiting improper validation of user-controlled addresses. The vulnerability has a CVSS score of 8.9, indicating a critical impact on confidentiality and integrity with low impact on availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
IBM i versions 7.3 through 7.6 contain a vulnerability classified as CWE-269 (Improper Privilege Management) that allows a remote attacker to bypass security restrictions. This occurs due to improper validation of user-controlled addresses, potentially enabling unauthorized access or actions. The vulnerability has a CVSS 3.1 base score of 8.9, reflecting high impact on confidentiality and integrity, with a low impact on availability. The vulnerability is publicly disclosed but lacks an official remediation level or patch information as of the publication date.
Potential Impact
Successful exploitation could allow a remote attacker with no privileges and no user interaction to bypass security restrictions, leading to a complete compromise of confidentiality and integrity of the affected system, with limited impact on availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates and consider applying any recommended temporary mitigations once available.
CVE-2026-18193: CWE-269 Improper Privilege Management
Description
CVE-2026-18193 is a high severity vulnerability affecting IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves improper privilege management where a remote attacker could bypass security restrictions by exploiting improper validation of user-controlled addresses. The vulnerability has a CVSS score of 8.9, indicating a critical impact on confidentiality and integrity with low impact on availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 8.9high
Affected software
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM i versions 7.3 through 7.6 contain a vulnerability classified as CWE-269 (Improper Privilege Management) that allows a remote attacker to bypass security restrictions. This occurs due to improper validation of user-controlled addresses, potentially enabling unauthorized access or actions. The vulnerability has a CVSS 3.1 base score of 8.9, reflecting high impact on confidentiality and integrity, with a low impact on availability. The vulnerability is publicly disclosed but lacks an official remediation level or patch information as of the publication date.
Potential Impact
Successful exploitation could allow a remote attacker with no privileges and no user interaction to bypass security restrictions, leading to a complete compromise of confidentiality and integrity of the affected system, with limited impact on availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates and consider applying any recommended temporary mitigations once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-29T03:32:13.335Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e2fb3bf8831d539cb5ccf
Added to database: 08/13/2026, 20:57:23 UTC
Last enriched: 08/13/2026, 21:11:35 UTC
Last updated: 08/13/2026, 21:11:35 UTC
Views: 2
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