CVE-2020-4449 json
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 sp…
published 2020-06-05 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25696
- cvss
- 7.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.0%
- EPSS 4.0% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- ibm.com/support/pages/node/6220296 advisory
Exploit prediction
4.03% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.5 | 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 |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- IBM WebSphere Application Server
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
ibm.com
/support/pages/node/6220296
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/181230
vdb-entry, vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-20-690/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-4449
- NVD CVE-2020-4449
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.