Skip to content
Noroxi
CVE-2026-17488· CVE.org (no NVD analysis yet)· CNA ibm

IBM i is Affected By An Improper Authentication Vulnerability in SST / DST

Noroxi assessment

Priority: Monitor (action score 17/100)

  • 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: 0.26% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. 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 authenticated attacker to bypass security restrictions due to improper authentication.

MediumCVSS 4.3 · v3.1—No exploit No fix recorded
Published
Oct 16, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · ibm
4.3
NVD has not scored this yet; the score shown is the CNA’s.

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-2026-17488

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for ibm records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

—

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

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-2026-17073Oct 16, 2026 · IBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
    21Monitor
  • ← EarlierCVE-2026-17275Oct 16, 2026 · IBM i is Affected by an Improper Validation Vulnerability
    14Monitor
  • Later →CVE-2026-17491Oct 16, 2026 · IBM i is Affected By An Improper Privilege Management Vulnerability in OpenSSH
    21Monitor

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).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

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

  • CVE-2026-1822142 days apartIBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DRDA [, ]
    39Monitor
  • CVE-2026-1719764 days apartIBM i is Affected By Multiple Vulnerabilities in Host Servers
    39Monitor
  • CVE-2026-1686764 days apartIBM i is Affected By Multiple Vulnerabilities in NetServer
    39Monitor
  • CVE-2026-1710164 days apartIBM i is Affected By Multiple Vulnerabilities in Navigator for i
    38Monitor
  • CVE-2026-1707564 days apartIBM i is Affected By Multiple Vulnerabilities in Digital Certificate Manager
    32Monitor
  • CVE-2026-1709964 days apartIBM i is Affected By Multiple Vulnerabilities in Navigator for i
    29Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-961193 days apartIBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server Administration GUI
    39Monitor
  • CVE-2026-1886928 days apartIBM i is Affected By Denial of Service and Security Restriction Bypass Vulnerabilities in FTP [, ]
    25Monitor
  • CVE-2026-938863 days apartIBM i is Affected By An Improper Neutralization of Input Vulnerability in HTTP Server Administration GUI
    21Monitor
  • CVE-2026-1851532 days apartIBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.
    17Monitor

Bug bounty scope

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

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

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. SSVC exploitation— → none
  2. 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