CVE-2026-17476: CWE-787 Out-of-bounds Write
CVE-2026-17476 is a medium severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves an out-of-bounds write (CWE-787) that could allow a remote attacker to cause a denial of service by improper buffer writing. No known exploits are reported in the wild, and no official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability affects IBM i operating system versions 7.3 through 7.6. It is classified as an out-of-bounds write (CWE-787), which means that the software improperly writes data outside the boundaries of allocated buffers. This flaw could be triggered remotely without authentication, potentially leading to a denial of service condition. The CVSS v3.1 base score is 4.8, indicating medium severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impact limited to integrity and availability. There is no vendor advisory or patch information provided at this time.
Potential Impact
An attacker could remotely exploit this vulnerability to cause a denial of service by triggering an improper buffer write. The impact does not include confidentiality loss but affects system integrity and availability. No known active exploitation has been reported.
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. No specific mitigation steps are provided by the vendor at this time.
CVE-2026-17476: CWE-787 Out-of-bounds Write
Description
CVE-2026-17476 is a medium severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves an out-of-bounds write (CWE-787) that could allow a remote attacker to cause a denial of service by improper buffer writing. No known exploits are reported in the wild, and no official patch or remediation guidance is currently available.
CVSS v3.1
Score 4.8medium
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
This vulnerability affects IBM i operating system versions 7.3 through 7.6. It is classified as an out-of-bounds write (CWE-787), which means that the software improperly writes data outside the boundaries of allocated buffers. This flaw could be triggered remotely without authentication, potentially leading to a denial of service condition. The CVSS v3.1 base score is 4.8, indicating medium severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impact limited to integrity and availability. There is no vendor advisory or patch information provided at this time.
Potential Impact
An attacker could remotely exploit this vulnerability to cause a denial of service by triggering an improper buffer write. The impact does not include confidentiality loss but affects system integrity and availability. No known active exploitation has been reported.
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. No specific mitigation steps are provided by the vendor at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T22:19:23.735Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e2fb1bf8831d539cb5c97
Added to database: 08/13/2026, 20:57:21 UTC
Last enriched: 08/13/2026, 21:12:53 UTC
Last updated: 08/13/2026, 23:07:29 UTC
Views: 3
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