CVE-2026-18858

LOW

Published Sep 4, 2026 Modified Sep 8, 2026 CWE-267

Description

IBM i 7.6, and 7.5 could allow a local authenticated attacker to obtain information from a privileged file when using SSH.

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CVSS v3.1 Score

3.3

LOW

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

EPSS — Exploit Prediction

0.0010

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-267 CWE-267

Affected Products

Vendor	Product	Versions
ibm	i	All
ibm	i	All

References

Advisories & Patches

https://www.ibm.com/support/pages/node/7285938

Frequently Asked Questions

What is CVE-2026-18858? +

IBM i 7.6, and 7.5 could allow a local authenticated attacker to obtain information from a privileged file when using SSH. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2026-18858? +

CVE-2026-18858 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0010, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-18858? +

CVE-2026-18858 affects products from ibm, specifically: i. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-18858? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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