Quick answers
- Is CVE-2026-18887 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18887 being exploited in the wild.
- How severe is CVE-2026-18887?
- Medium severity, with a CVSS score of 6.5, published 4 September 2026.
- Which products and versions are affected?
- IBM I 7.3 7.3; IBM I 7.4 7.4; IBM I 7.5 7.5; IBM I 7.6 7.6.
- Is there a fix for CVE-2026-18887?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-18887 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-18887?
- Check whether you run IBM I 7.3, IBM I 7.4, IBM I 7.5 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This vulnerability is an information exposure flaw (CWE-200) in IBM i's PASE component that allows an authenticated attacker with network access to retrieve sensitive process information they are not authorized to access. The issue requires an attacker to be authenticated to the system (PR:L), but does not require user interaction. No patches have been released as of the publication date; IBM has issued PTFs (Program Temporary Fixes) MJ11365, MJ11364, MJ11363, and MJ11362 for versions 7.6, 7.5, 7.4, and 7.3 respectively. The vulnerability impacts confidentiality (C:H) while integrity and availability remain unaffected.
Affected products
- IBM i 7.6 7.6
- IBM i 7.5 7.5
- IBM i 7.4 7.4
- IBM i 7.3 7.3
Timeline
- 2026-09-04: disclosed: Vulnerability disclosed by IBM