CVE-2020-4450
9.8
CRITICAL · CVSS 3.1 · EPSS 34.2% (pctl 98)
Patch early
EPSS 34.2% — above the 10% action threshold.
Description
IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181231.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 34.18% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-06-05 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| ibm | websphere application server |
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/181231
- https://www.ibm.com/support/pages/node/6220294
- https://www.zerodayinitiative.com/advisories/ZDI-20-689/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/181231
- https://www.ibm.com/support/pages/node/6220294
- https://www.zerodayinitiative.com/advisories/ZDI-20-689/
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