CVE-2019-4279
IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary...
IBM WebSphere Application Server 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: 160445.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
IBM WebSphere Application Server 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: 160445.
- Record
CVE-2019-4279- CVSS 3.0
- 9.0 Critical
CVSS:3.0/S:C/A:H/AC:H/I:H/C:H/AV:N/PR:N/UI:N/RL:O/RC:C/E:U - Updated
- 2026-11-02
EUVDEUVD-2019-13886
IBM WebSphere Application Server 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: 160445.
- Record
EUVD-2019-13886- CVSS 3.0
- 9.0 Critical
CVSS:3.0/S:C/A:H/AC:H/I:H/C:H/AV:N/PR:N/UI:N/RL:O/RC:C/E:U - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-86jp-p2qr-pc2r
IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary...
IBM WebSphere Application Server 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: 160445.
- Record
GHSA-86jp-p2qr-pc2r- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
IBM WebSphere Application Server 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: 160445.
- Record
CVE-2019-4279- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 9.0 Critical
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | IBM Websphere Application Server - Network Deployment Untrusted Data Deserialization Remote Code Execution (Metasploit) | 2019-06-05 |
| Metasploit | IBM Websphere Application Server Network Deployment Untrusted Data Deserialization Remote Code Execution | 2019-05-15 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-4279 is a critical vulnerability (CVSS 9.0) in Ibm Websphere Application Server, published May 17, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 79.9%, the 99th percentile. No source names a fixed version.