CVE-2026-18102: CWE-122 Heap-based Buffer Overflow
CVE-2026-18102 is a heap-based buffer overflow vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It arises from an integer underflow during bounds checking, which could allow a remote authenticated attacker to overwrite adjacent memory. The vulnerability has a low CVSS score of 3.5 and does not impact confidentiality or availability but can impact integrity. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
IBM i versions 7.3 through 7.6 contain a heap-based buffer overflow vulnerability (CWE-122) caused by an integer underflow during bounds checking. This flaw could allow a remote attacker with low privileges and no user interaction to overwrite adjacent memory, potentially leading to integrity violations. The vulnerability is confirmed and published but lacks an official remediation level or patch information at this time.
Potential Impact
The vulnerability allows a remote authenticated attacker with low privileges to overwrite adjacent memory due to an integer underflow, potentially compromising data integrity. There is no impact on confidentiality or availability reported. No known exploits are currently in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published by IBM at this time.
CVE-2026-18102: CWE-122 Heap-based Buffer Overflow
Description
CVE-2026-18102 is a heap-based buffer overflow vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It arises from an integer underflow during bounds checking, which could allow a remote authenticated attacker to overwrite adjacent memory. The vulnerability has a low CVSS score of 3.5 and does not impact confidentiality or availability but can impact integrity. No official patch or remediation guidance is currently available.
CVSS v3.1
Score 3.5low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM i versions 7.3 through 7.6 contain a heap-based buffer overflow vulnerability (CWE-122) caused by an integer underflow during bounds checking. This flaw could allow a remote attacker with low privileges and no user interaction to overwrite adjacent memory, potentially leading to integrity violations. The vulnerability is confirmed and published but lacks an official remediation level or patch information at this time.
Potential Impact
The vulnerability allows a remote authenticated attacker with low privileges to overwrite adjacent memory due to an integer underflow, potentially compromising data integrity. There is no impact on confidentiality or availability reported. No known exploits are currently in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published by IBM at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-28T17:33:47.769Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a861420acd9273b4997c7cd
Added to database: 08/19/2026, 20:37:52 UTC
Last enriched: 08/19/2026, 20:53:35 UTC
Last updated: 08/19/2026, 20:53:35 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.