CVE-2020-4448 in the critical feed json
IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the s…
published 6y ago modified 4mo ago also EUVD-2020-25695
- cvss
- 9.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 12.5%
- EPSS 12.5% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM X-Force ID: 181228.
Patch / fix
Is CVE-2020-4448 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
12.52% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 9.8 | CVSS:3.0/S:U/I:H/A:H/UI:N/AC:L/PR:N/C:H/AV:N/RC:C/E:U/RL:O |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- IBM WebSphere Application Server
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
ibm.com
/support/pages/node/6220336
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/181228
vdb-entry, vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-20-688/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-4448
- NVD CVE-2020-4448
Fencer Intel 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.