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.
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Affected Vendors & Products
References
History
Wed, 01 Jul 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Dhcpcd: dhcpcd infinite loop and out-of-bounds read via zero-length ipv6 nd option in router advertisement handling | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-835 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 | |
| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-07-01T12:20:42.349Z
Reserved: 2026-06-30T15:57:04.334Z
Link: CVE-2026-14258
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OpenCVE Enrichment
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