CVE-2026-18846
IBM i is Affected By Multiple Vulnerabilities in Host Servers
Description
IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a buffer overflow from improperly validating client data. By sending malformed requests to one of the host servers, a remote attacker could leverage this vulnerability to cause a denial-of-server (DoS) for that server.
INFO
Published Date :
Aug. 13, 2026, 6:58 p.m.
Last Modified :
Aug. 13, 2026, 6:58 p.m.
Remotely Exploit :
Yes !
Source :
ibm
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 9a959283-ebb5-44b6-b705-dcc2bbced522 |
Solution
- Apply the latest IBM i cumulative update.
- Ensure all host servers are patched.
- Validate client data input rigorously.
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CVE-2026-18846 vulnerability anywhere in the article.