CVE-2018-1421
IBM WebSphere DataPower Appliances 7.1, 7.2, 7.5, 7.5.1, 7.5.2, and 7.6 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
IBM WebSphere DataPower Appliances 7.1, 7.2, 7.5, 7.5.1, 7.5.2, and 7.6 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 139023.
- CVSS 3.0
- 7.1 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
- EPSS
- 1.37% probability · 72th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- ibm/datapower gateway
- Source
- psirt@us.ibm.com
EPSS 1.4% since 28 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.ibm.com/support/docview.wss?uid=swg22015055Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/139023VDB Entry, Vendor Advisory
- http://www.ibm.com/support/docview.wss?uid=swg22015055Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/139023VDB Entry, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.