CVE-2026-17073
IBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
02 Description
IBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.17% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 6.4% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-16 18:39Z12 DAYS AGO
- Last updated
- 2026-10-21 21:25Z7 DAYS AGO
- Reserved
- 2026-07-24
- Assigning CNA
- ibm
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.4)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-284Improper Access ControlPillar
- Data version
- 5.2
- Document digest
- d76b67bc90979d9c1d40555c703e18bc12875e562c3afda44db6741966e0caa5
05 Affected products
06 References
07 Remediation
Application of the PTFs require additional actions that if not taken will cause existing NFS mounts to become inaccessible. View each PTF's cover letter for the additional actions required prior to installation. IBM i Release5770-SS1 PTF Number(s)PTF Download Link(s)7.6SJ11753 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11753 7.5SJ11790 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11790 7.4SJ11802 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11802 7.3SJ11804 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11804 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.