How severe is CVE-2026-6936?

CVE-2026-6936 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-6936 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6936?

CVE-2026-6936 affects Ibm I. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6936?

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

Does CVE-2026-6936 have an EU (EUVD) identifier?

Yes. CVE-2026-6936 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32491.

When was CVE-2026-6936 published?

CVE-2026-6936 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-6936

CVE-2026-6936 is a medium-severity vulnerability in Ibm I with a CVSS 3.x base score of 6.5. 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 6.5)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32491
Weakness: CWE-674
Affected product: Ibm I
Published: 2026-05-27
Last modified: 2026-06-17

Description

IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a denial-of-service attack due to uncontrolled recursion in the Integrated Language Environment (ILE) compiler. An authenticated attacker could exploit this vulnerability by compiling specially crafted source code containing a specific combination of statements.

Frequently asked questions

What is CVE-2026-6936?: IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a denial-of-service attack due to uncontrolled recursion in the Integrated Language Environment (ILE) compiler. An authenticated attacker could exploit this vulnerability by compiling specially crafted source code containing a specific combination of statements.
How severe is CVE-2026-6936?: CVE-2026-6936 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-6936 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6936?: CVE-2026-6936 affects Ibm I. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6936?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-6936 have an EU (EUVD) identifier?: Yes. CVE-2026-6936 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32491.
When was CVE-2026-6936 published?: CVE-2026-6936 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7272908

Affected products (1)

cpe:2.3:a:ibm:i:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm I

CVE-2026-7870 — High (CVSS 8.8): IBM i 7.6, 7.5, 7.4, and 7.3 could allow a user to gain elevated privileges due to an unqualified library call. A…
CVE-2025-36367 — High (CVSS 8.8): IBM i 7.6, 7.5, 7.4, 7.3, and 7.2 is vulnerable to privilege escalation caused by an invalid IBM i SQL services…
CVE-2025-36004 — High (CVSS 8.8): IBM i 7.2, 7.3, 7.4, and 7.5 could allow a user to gain elevated privileges due to an unqualified library call in IBM…
CVE-2022-22495 — High (CVSS 8.8): IBM i 7.3, 7.4, and 7.5 is vulnerable to SQL injection. A remote attacker could send specially crafted SQL statements,…
CVE-2023-30990 — High (CVSS 8.6): IBM i 7.2, 7.3, 7.4, and 7.5 could allow a remote attacker to execute CL commands as QUSER, caused by an exploitation…
CVE-2025-33108 — High (CVSS 8.5): IBM Backup, Recovery and Media Services for i 7.4 and 7.5 could allow a user with the capability to compile or restore…

All CVEs affecting Ibm I →

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-2026-40324 — Critical (CVSS 9.1): Hot Chocolate is an open-source GraphQL server. Prior to versions 12.22.7, 13.9.16, 14.3.1, and 15.1.14, Hot…

Browse all CWE-674 (Uncontrolled Recursion) vulnerabilities →