CVE-2026-17073: IBM i · Improper Access Control
Source CVE Database V5
Not known to be exploited · CVSS 5.4 Medium.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 16 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IBM | Affected
| Fixed in– |
CPE configurations (4)
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
AI-suggested
Until a fix is available, limit local access to trusted users only and monitor for suspicious activity related to file handle operations.
Description
CVE-2026-17073 is a medium severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves improper access control due to missing subtree checks during file handle resolution, which could allow a local attacker to obtain sensitive information. The vulnerability has a CVSS 3.1 base score of 5.4, indicating a moderate impact on confidentiality and integrity without affecting availability.