How severe is CVE-2026-17440?

CVE-2026-17440 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-17440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-17440?

CVE-2026-17440 primarily affects Ibm App Connect Enterprise. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-17440?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-17440 published?

CVE-2026-17440 was published on 2026-09-04 and last updated on 2026-09-09.

CVE-2026-17440

CVE-2026-17440 is a medium-severity vulnerability in Ibm App Connect Enterprise with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-674.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-674
Affected product: Ibm App Connect Enterprise
Published: 2026-09-04
Last modified: 2026-09-09

Description

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 could allow a local attacker to cause a denial of service due to uncontrolled recursion.

Frequently asked questions

What is CVE-2026-17440?: IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 could allow a local attacker to cause a denial of service due to uncontrolled recursion.
How severe is CVE-2026-17440?: CVE-2026-17440 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-17440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-17440?: CVE-2026-17440 primarily affects Ibm App Connect Enterprise. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-17440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-17440 published?: CVE-2026-17440 was published on 2026-09-04 and last updated on 2026-09-09.

References

https://www.ibm.com/support/pages/node/7286372

Affected products (2)

cpe:2.3:a:ibm:app_connect_enterprise:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:integration_bus_for_z\/os:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm App Connect Enterprise

CVE-2026-15435 — Critical (CVSS 9.8): IBM App Connect Enterprise 13.0.1.0 through 13.0.7.2, and 12.0.1.0 through 12.0.12.27 could allow a remote attacker to…
CVE-2024-22317 — Critical (CVSS 9.1): IBM App Connect Enterprise 11.0.0.1 through 11.0.0.24 and 12.0.1.0 through 12.0.11.0 could allow a remote attacker to…
CVE-2026-75624 — High (CVSS 8.8): IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.27 could allow a remote…
CVE-2026-14522 — High (CVSS 8.8): IBM App Connect Enterprise 13.0.1.0 through 13.0.7.2, and 12.0.1.0 through 12.0.12.27 could allow a remote attacker to…
CVE-2026-81832 — High (CVSS 7.7): IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS…
CVE-2026-14519 — High (CVSS 7.5): IBM App Connect Enterprise 13.0.1.0 through 13.0.7.2, and 12.0.1.0 through 12.0.12.27 could allow a remote attacker to…

All CVEs affecting Ibm App Connect Enterprise →

Other CWE-674 (Uncontrolled Recursion) vulnerabilities

CVE-2026-43185 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in…
CVE-2023-51803 — Critical (CVSS 9.8): LinuxServer.io Heimdall before 2.5.7 does not prevent use of icons that have non-image data such as the "<?php ?>"…
CVE-2021-41752 — Critical (CVSS 9.8): Stack overflow vulnerability in Jerryscript before commit e1ce7dd7271288be8c0c8136eea9107df73a8ce2 on Oct 20, 2021 due…
CVE-2018-1000618 — Critical (CVSS 9.8): EOSIO/eos eos version after commit f1545dd0ae2b77580c2236fdb70ae7138d2c7168 contains a stack overflow vulnerability in…
CVE-2025-10728 — Critical (CVSS 9.4): When the module renders a Svg file that contains a <pattern> element, it might end up rendering it recursively leading…
CVE-2026-32327 — Critical (CVSS 9.1): A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses…

Browse all CWE-674 (Uncontrolled Recursion) vulnerabilities →