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CVE-2020-4449
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to obtain sensitive information with a…
High7.5EPSS 4.0%
- Published
- Updated
- Reserved
- Assigned by
- ibm
Description
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to obtain sensitive information with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181230.
Timeline
ID reserved
By ibm
- 5 months later
· 5 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ibmCNA (assigner) | 3.0 | High7.5 | CVSS:3.0/A:N/I:N/S:U/PR:N/C:H/AV:N/AC:L/UI:N/RC:C/E:U/RL:O |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 4.0% · top 9.3% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Obtain Information
- CWE-502 (opens in a new tab)All about CWE-502 and its CVEs
Affected products
IBM · WebSphere Application Server
- affected 7.0
- affected 8.0
- affected 8.5
- affected 9.0
References (3)
- https://www.ibm.com/support/pages/node/6220296 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ibm-websphere-cve20204449-info-disc (181230) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-20-690/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-4449)Record last updated .