Out-of-bounds write in IBM Security Identity Manager Adapters
Priority LOW 32CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A remote authenticated attacker could overflow the and cause the server to crash. IBM X-Force ID: 199247.
Why it matters now
EPSS 0.01498 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Security Identity Manager Adapters | 6.0; 7.0 | — | No fix listed | CNA |
- Security Identity Manager Adapters VendorIBM Affected 6.0; 7.0 Fixed in — No fix listed CNA
CPE configurations NVD · 3
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20572
- 2026-10-03 Alias added: GHSA-mrv2-9m48-589p
References
More IBM Security Identity Manager Adapter vulnerabilities
- TI-2021-03807 Injection in IBM Security Identity Manager Adapters CVSS 3.1HIGH 8.8
- TI-2016-00294 IBM Security Identity Manager (ISIM) Virtual Appliance 7.0.0.0 through 7.0.1.1 before… CVSS 3.0HIGH 7.3
- TI-2016-00301 IBM Security Identity Manager (ISIM) Virtual Appliance 7.0.0.0 through 7.0.1.1 before… CVSS 3.0HIGH 7.4
- TI-2021-03806 Out-of-bounds write in IBM Security Identity Manager Adapters CVSS 3.1MEDIUM 6.5
- TI-2021-03745 Out-of-bounds write in IBM Security Identity Manager Adapters CVSS 3.1MEDIUM 6.5
- TI-2016-00300 IBM Security Identity Manager (ISIM) Virtual Appliance 7.0.0.0 through 7.0.1.1 before… CVSS 3.0MEDIUM 5.6
Sources
- CVE-2021-20572 · CVE Program
- CVE-2021-20572 · NVD
- FIRST EPSS
- GHSA-mrv2-9m48-589p · GitHub Advisory Database · CC BY 4.0
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