CVE-2026-18076: CWE-401 Missing Release of Memory after Effective Lifetime
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to cause a denial of service due to a memory leak.
CVSS v3.1
Score 4.3medium
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:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM i versions 7.3, 7.4, 7.5, and 7.6 contain a vulnerability identified as CVE-2026-18076, categorized under CWE-401 (Missing Release of Memory after Effective Lifetime). This flaw allows a remote attacker with authentication privileges to cause a denial of service condition by exploiting a memory leak. The CVSS 3.1 base score is 4.3 (medium), with attack vector network, low attack complexity, requiring privileges, no user interaction, and impacting availability only.
Potential Impact
The vulnerability can be exploited remotely by an authenticated attacker to cause a denial of service due to memory exhaustion. There is no impact on confidentiality or integrity. The denial of service could disrupt normal operation of the affected IBM i systems.
Mitigation Recommendations
No official patch or remediation information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit remote authenticated access to trusted users and monitor system resource usage to detect potential exploitation attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-28T15:10:18.711Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9af3e1acd9273b49e2f965
Added to database: 09/04/2026, 16:37:53 UTC
Last enriched: 09/14/2026, 23:58:18 UTC
Last updated: 10/18/2026, 06:48:16 UTC
Views: 83
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.