CVE-2026-16931 HIGH

CVE-2026-16931: IBM i is Affected By A Denial of Service Vulnerability []

Vendor Ibm

Product i

Weakness CWE-835

Published August 12, 2026

Last update August 12, 2026

View on NVD All CVEs

CVSS base score

7.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality None

Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper handling of zero-length TCP options.

Key dates

02Disclosure timeline

August 12, 2026 CVE published

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-16931 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/835.html AskarLabs — CWE-835 write-up Loop with Unreachable Exit Condition (Infinite Loop)

Related vulnerabilities

Identifiers

CVE CVE-2026-16931

CWE CWE-835

CVSS 7.5 / HIGH

Affected versions

Vendor Ibm

Product i

Affected 7.6

Vendor Ibm

Product i

Affected 7.5

Vendor Ibm

Product i

Affected 7.4

Vendor Ibm

Product i

Affected 7.3

CVE-2026-16931: IBM i is Affected By A Denial of Service Vulnerability []

01Description

02Disclosure timeline

03References

04Related CVE