CVE-2021-20494: IBM Security Identity Manager Adapter

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.

Affected products

• IBM Security Identity Manager Adapter: version 6.0.0.0 only; version 7.0.0.0 only

Published 2021-06-28. Last modified 2026-06-17.