High severity · published Sep 14, 2026
CVE-2026-17156
IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multiple CVEs
7.8
CVSS
0.4%
EPSS
No
On KEV
Description
IBM App Connect Enterprise 13.0.1.0 through 13.0.8.0, and 12.0.1.0 through 12.0.12.27 could allow a local attacker to execute arbitrary code due to insecure deserialization.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
App Connect Enterprise · IBM
13.0.1.0 through 13.0.8.0; 12.0.1.0 through 12.0.12.27 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17156
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17156
www.ibm.com
https://www.ibm.com/support/pages/node/7286530
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