CVE-2026-17077: CWE-457 Use of Uninitialized Variable
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to the use of an uninitialized variable.
AI Analysis
Technical Summary
CVE-2026-17077 is a vulnerability in IBM i versions 7.3 through 7.6 where a remote attacker can cause a denial of service by exploiting the use of an uninitialized variable. This vulnerability is categorized under CWE-457. The attack vector is network-based with low attack complexity and no privileges or user interaction required. The vulnerability impacts system availability but does not affect confidentiality or integrity.
Potential Impact
An attacker can remotely cause a denial of service on affected IBM i systems by leveraging the use of an uninitialized variable. There is no impact on data confidentiality or integrity. The disruption affects system availability only.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been published by IBM at this time.
CVE-2026-17077: CWE-457 Use of Uninitialized Variable
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to the use of an uninitialized variable.
CVSS v3.1
Score 5.3medium
Affected software
IBM
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:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17077 is a vulnerability in IBM i versions 7.3 through 7.6 where a remote attacker can cause a denial of service by exploiting the use of an uninitialized variable. This vulnerability is categorized under CWE-457. The attack vector is network-based with low attack complexity and no privileges or user interaction required. The vulnerability impacts system availability but does not affect confidentiality or integrity.
Potential Impact
An attacker can remotely cause a denial of service on affected IBM i systems by leveraging the use of an uninitialized variable. There is no impact on data confidentiality or integrity. The disruption affects system availability only.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been published by IBM at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T14:23:41.668Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7e2c18bf8831d539c6f4be
Added to database: 08/13/2026, 20:42:00 UTC
Last enriched: 08/21/2026, 13:13:31 UTC
Last updated: 09/28/2026, 13:47:42 UTC
Views: 63
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