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CVE-2026-17262: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

0
Medium
Published: 09/18/2026 (09/18/2026, 21:32:25 UTC)
Source: CVE Database V5

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to cause a denial of service due to improper validation of FTP authentication commands.

CVSS v3.1

Score 5.4medium

Attack Vector
Adjacent Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected software

IBM

Affected versions
=7.6=7.5=7.4=7.3
CPE configurations (8)
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:*:*:*:*:*:*:*

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/18/2026, 20:32:56 UTC

Technical Analysis

CVE-2026-17262 is an OS command injection vulnerability affecting IBM i versions 7.3, 7.4, 7.5, and 7.6. The issue arises from improper neutralization of special elements in FTP authentication commands, which could be exploited by a local attacker to cause a denial of service condition. The CVSS v3.1 base score is 5.4, indicating a medium severity level. There is no indication of confidentiality impact, but integrity and availability impacts are present. No known exploits are reported in the wild, and no patch or vendor advisory information is provided in the input data.

Potential Impact

A local attacker could leverage this vulnerability to cause denial of service on affected IBM i systems by exploiting improper validation of FTP authentication commands. There is no reported impact on confidentiality, but integrity and availability could be affected. No known active exploitation has been reported.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, administrators should monitor IBM's security advisories for updates. Until a fix is available, restricting local access and controlling FTP authentication command usage may reduce risk.

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Technical Details

Data Version
5.2
Assigner Short Name
ibm
Date Reserved
2026-07-24T22:36:41.742Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6aad91c755bf5e2cf5719161

Added to database: 09/18/2026, 19:32:23 UTC

Last enriched: 09/18/2026, 20:32:56 UTC

Last updated: 09/19/2026, 01:33:45 UTC

Views: 4

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