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VulnerabilityPublished

CVE-2026-17099: IBM · Improper Authentication

Affects IBMSource CVE Database V5

0

Not known to be exploited · CVSS 7.3 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.3High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
IBMAffected
  • 7.3 – 7.6
4 affected builds
Fixed in–

CPE configurations (8)

  • 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:*:*:*:*:*:*:*

AI-suggested

Until an official fix is available, monitor IBM's security advisories for updates and consider implementing compensating controls if possible.

Description

CVE-2026-17099 is a high-severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6 that involves improper authentication. This flaw could allow a remote attacker to obtain sensitive information without proper authorization. The vulnerability affects multiple IBM i releases and has a CVSS score of 7.3, indicating significant impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently provided by the vendor. There are no known exploits in the wild at this time.

References

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