CVE-2026-17211 (CVSS 4.3)

Description

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to cause a denial of service due to incorrect type conversion. A value is converted incorrectly between two different types, which could cause the service to return invalid responses or become unavailable.

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CVSS v3.1 Score

4.3

MEDIUM

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

EPSS — Exploit Prediction

0.0046

Probability of exploitation

0.40%

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-704 CWE-704

References

Other References

https://www.ibm.com/support/pages/node/7295635 https://www.ibm.com/support/pages/node/7295637

Frequently Asked Questions

What is CVE-2026-17211? +

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to cause a denial of service due to incorrect type conversion. A value is converted incorrectly between two different types, which could cause the service to return invalid responses or become unavailable. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-17211? +

CVE-2026-17211 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0046, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-17211? +

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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CVE-2026-17211