CVE-2026-17255: medium-severity vulnerability in IBM i
IBM i is Affected By Denial of Service Vulnerability []
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.6%
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 validation of the prefix length in ICMPv6 Router Advertisements.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
IBM · iRelated CVEs — IBM i
In the same product, most dangerous first.