CVE-2023-27556: IBM Safer Payments denial of service

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-28 · updated 2026-06-17
Weakness: CWE-770

Description

IBM Counter Fraud Management for Safer Payments 6.1.0.00, 6.2.0.00, 6.3.0.00 through 6.3.1.03, 6.4.0.00 through 6.4.2.02 and 6.5.0.00 does not properly allocate resources without limits or throttling which could allow a remote attacker to cause a denial of service. IBM X-Force ID: 249190.

Affected products

IBM Safer Payments: from 6.1.0.00 before 6.3.1.04; from 6.4.0.00 before 6.4.2.03; 6.5.0.00 — fixed in 6.3.1.04, 6.4.2.03

How to fix

Upgrade to a fixed version: IBM Safer Payments 6.3.1.04, 6.4.2.03. Check the vendor advisory for mitigations.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/249190
https://www.ibm.com/support/pages/node/6985601
https://exchange.xforce.ibmcloud.com/vulnerabilities/249190
https://www.ibm.com/support/pages/node/6985601

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