CVE-2026-14258
Medium
Description
A flaw was found in dhcpcd's IPv6 Neighbor Discovery Router Advertisement processing. A specially crafted IPv6 Router Advertisement containing a zero-length Neighbor Discovery option can bypass validation during packet storage and later be reparsed without adequate validation, causing the parser to enter a non-advancing loop. Successful exploitation may result in excessive CPU consumption, leading to a denial of service.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedJul 1, 2026
First seenJul 1, 2026
Weakness typeCWE-835CWE-835
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
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