Deserialization of untrusted data in IBM InfoSphere Information Server
Priority MEDIUM 45CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.
Summary
IBM InfoSphere Information Server 11.3, 11.5, and 11.7 could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data. By persuading a victim to visit a specially crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 176677.
Why it matters now
EPSS 0.04542 91st 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 | InfoSphere Information Server | 11.3; 11.5; 11.7 | — | No fix listed | CNA |
- InfoSphere Information Server VendorIBM Affected 11.3; 11.5; 11.7 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:infosphere_information_server:*:*:*:*:*:*:*:* | 11.7.0.0 – 11.7.1.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:infosphere_information_server:11.3.0:*:*:*:*:*:*:* | 11.3.0 | Vulnerable | IBM |
| cpe:2.3:a:ibm:infosphere_information_server:11.5.0:*:*:*:*:*:*:* | 11.5.0 | Vulnerable | IBM |
| cpe:2.3:a:ibm:infosphere_information_server_on_cloud:*:*:*:*:*:*:*:* | 11.7.0.0 – 11.7.1.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:infosphere_information_server_on_cloud:11.5.0.0:*:*:*:*:*:*:* | 11.5.0.0 | Vulnerable | IBM |
- cpe:2.3:a:ibm:infosphere_information_server:*:*:*:*:*:*:*:* Versions 11.7.0.0 – 11.7.1.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:infosphere_information_server:11.3.0:*:*:*:*:*:*:* Versions 11.3.0 Vulnerable ·IBM
- cpe:2.3:a:ibm:infosphere_information_server:11.5.0:*:*:*:*:*:*:* Versions 11.5.0 Vulnerable ·IBM
- cpe:2.3:a:ibm:infosphere_information_server_on_cloud:*:*:*:*:*:*:*:* Versions 11.7.0.0 – 11.7.1.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:infosphere_information_server_on_cloud:11.5.0.0:*:*:*:*:*:*:* Versions 11.5.0.0 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-4305
- 2026-10-03 Alias added: GHSA-7r84-f4r2-q9q9
References
More IBM Infosphere Information Server vulnerabilities
- TI-2020-16712 IBM InfoSphere Information Server 8.5.0.0 is affected by deserialization of untrusted… CVSS 3.1CRITICAL 9.8
- TI-2022-19379 Command injection in IBM InfoSphere DataStage CVSS 3.1CRITICAL 9.8
- TI-2022-06725 CSV injection in IBM InfoSphere Information Server CVSS 3.1CRITICAL 9.8
- TI-2022-19375 XML external entity injection in IBM InfoSphere Information Server CVSS 3.1CRITICAL 9.1
- TI-2022-23773 IBM InfoSphere Information Server SQL injection CVSS 3.1CRITICAL 9.8
- TI-2009-04024 Multiple buffer overflows in unspecified setuid executables in the DataStage subsystem in… CVSS 2.0HIGH 10.0
Sources
- CVE-2020-4305 · CVE Program
- CVE-2020-4305 · NVD
- FIRST EPSS
- GHSA-7r84-f4r2-q9q9 · GitHub Advisory Database · CC BY 4.0
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