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CVE-2026-18173

LOW 3.7

Published 2026-09-22 · Last modified 2026-09-23

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to obtain sensitive information due to improper enforcement of mutual TLS authentication.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 14th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

3.7CVSS 3.1 · LOW

  • ConfidentialityLow
  • IntegrityNone
  • AvailabilityNone

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-18173/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-18173/poc.json

Affected

Vendors Ibm Redhat

Products Financial Transaction Manager (Ftm) For Redhat Openshift Financial Transaction Manager Openshift

Weakness (CWE)

  • CWE-295: Improper Certificate Validation

CVSS vector

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

Known Affected Software Configurations

VendorProductVersion range
IbmFinancial Transaction Manager≥ 4.0.7.0 and < 4.0.11.0
IbmFinancial Transaction Manager4.0.6.0
IbmFinancial Transaction Manager4.0.6.0
IbmFinancial Transaction Manager4.0.6.0
IbmFinancial Transaction Manager4.0.6.0
IbmFinancial Transaction Manager4.0.6.0
IbmFinancial Transaction Manager4.0.6.0
IbmFinancial Transaction Manager4.0.6.0

All CVSS metrics

  • LOW 3.7 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
  • LOW 3.7 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Patches & mitigations

Sources: NVD · CVE.org · EPSS