CVEvulnerability
CVE-2026-41285
4.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-1284, CWE-835
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.
Affected configurations
• openbsd openbsd (<= 7.8)
Related
References
- https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f Patch
- https://www.openbsd.org/errata78.html Product, Release Notes
- https://www.rfc-editor.org/rfc/rfc4861#section-4.6 Not Applicable