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CVE.org (no NVD analysis yet)· CNA ibm

CVE-2026-17275: IBM i is Affected by an Improper Validation Vulnerability

MediumCVSS 5.3 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to perform unauthorized manipulation of distributed transactions due to improper validation of attacker-supplied transaction identifiers.

Published
Oct 16, 2026
Updated
Oct 23, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.3
CNA · ibm
3.7
1.6 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-17275

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
ibmi

Versions reported by the vendor

Affected version ranges reported by the assigning authority (ibm). Independent of NVD's CPE analysis and usually ahead of it.

  • IBM i

    • 7.6, 7.5, 7.4, 7.3affected
Affected versions · NVD (4)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • ibm i7.3
  • ibm i7.4
  • ibm i7.5
  • ibm i7.6

Same product

ibm: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-18193IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime
    40Plan
  • CVE-2026-96119IBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server Administration GUI
    39Monitor
  • CVE-2026-18221IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DRDA [, ]
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-17068Oct 16, 2026 · IBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
    13Monitor
  • ← EarlierCVE-2026-17073Oct 16, 2026 · IBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
    22Monitor
  • Later →CVE-2026-17488Oct 16, 2026 · IBM i is Affected By An Improper Authentication Vulnerability in SST / DST
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-1817542 days apartIBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DRDA [, ]
    30Monitor
  • CVE-2026-1850964 days apartIBM i is Affected By A Prvilege Escalation Vulnerability []
    28Monitor
  • CVE-2026-1814465 days apartIBM i is Affected By Multiple Vulnerabilities in Navigator for i
    17Monitor
  • CVE-2026-170680 days apartIBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
    13Monitor

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Not on record for this CVE: patch commit or PR link · researcher credit.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-285 · Improper Authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. CVSS3.7 → 5.3
  2. Severitylow → medium
  3. SSVC exploitation— → none
  4. Exploit maturity— → none

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records