In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery (ND) option (over a local network) with length zero, because of an "nd_opt_len * 8 - 2" expression with no preceding check for whether nd_opt_len is zero.
Metrics
Affected Vendors & Products
References
History
Fri, 24 Apr 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-835 | |
| CPEs | cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* |
Wed, 22 Apr 2026 03:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Infinite Loop in OpenBSD SLAACD and RAD Daemons Due to Zero-Length ICMPv6 ND Option |
Tue, 21 Apr 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 21 Apr 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openbsd
Openbsd openbsd |
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| Weaknesses | CWE-1284 | |
| CPEs | cpe:2.3:a:openbsd:openbsd:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openbsd
Openbsd openbsd |
|
| Metrics |
cvssV3_1
|
Mon, 20 Apr 2026 23:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery (ND) option (over a local network) with length zero, because of an "nd_opt_len * 8 - 2" expression with no preceding check for whether nd_opt_len is zero. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-04-20T00:00:00.000Z
Updated: 2026-04-21T13:27:42.310Z
Reserved: 2026-04-20T00:00:00.000Z
Link: CVE-2026-41285
Updated: 2026-04-21T13:27:37.961Z
Status : Analyzed
Published: 2026-04-21T00:16:29.480
Modified: 2026-04-24T18:59:03.117
Link: CVE-2026-41285
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