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CVE-2026-17491

IBM i is Affected By An Improper Privilege Management Vulnerability in OpenSSH

Medium5.4EPSS 0.17%
Published
Updated
Reserved
Assigned by
ibm

Description

IBM i 7.3, 7.4, 7.5, and 7.6 is could allow a remote authenticated attacker to bypass security restrictions due to improper enforcement of the ChrootDirectory configuration directive.

Timeline

  1. ID reserved

    By ibm

  2. · 3 months later

    Published

  3. · 3 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-17491, by who scored it
Scored byCVSSScoreVector
ibmCNA (assigner)3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVDNVD · Analyzed3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.17% · top 93% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Weakness

Affected products

  • IBM · i

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

What to do

Solution: IBM i Release5733-SC1  PTF Number(s)PTF Download Link(s)7.6SJ11849 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11849 7.5SJ11850 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11850 7.4SJ11852 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11852 7.3SJ11852 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11852 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

References (1)

Sources

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

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Record last updated .