IBM i Improper Authentication

Description

IBM i 7.3, 7.4, 7.5, and 7.6 could allow an unathenticated remote attacker to bypass security restrictions due to improper access control. By sending a specially crafted HTTP request to any URL within the Navigator application prior to authentication, a bad actor could exploit this vulnerability to alter server-side session security state.

Scores

EPSS (exploitation in 30 days)

0.43% · top 63% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

• CWE-287 Improper Authentication (opens in a new tab)All about CWE-287 and its CVEs

Affected products

• IBM · i

  • affected 7.6
  • affected 7.5
  • affected 7.4
  • affected 7.3

What to do

Solution: IBM i Release5770-SS1 Option 3  PTF Number(s)PTF Download Link(s)7.6SJ11740 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11740 7.5SJ11745 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11745 7.4SJ11746 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11746 7.3SJ11747 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11747 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

References (1)

• https://www.ibm.com/support/pages/node/7292223 (opens in a new tab)vendor-advisorypatch

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-93744](https://trackcve.app/badge/CVE-2026-93744.svg)](https://trackcve.app/cve/CVE-2026-93744)

Record last updated 21 Oct 2026, 15:51 UTC.