CVE-2026-41285_CVE-2026-41285

4.3 / 10

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Basic Information

ID CVE-2026-41285

Source mitre

Published Apr 20, 2026 at 00:00

Modified Apr 20, 2026 at 23:27

Affected Product

Vendor OpenBSD

Product OpenBSD

Affected Versions OpenBSD OpenBSD 0

CWE Classification

CWE-1284

References

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    "lastseen": "",
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    "published": "2026-04-20T00:00:00.000Z",
    "modified": "2026-04-20T23:27:57.468Z",
    "type": "cve",
    "title": "CVE-2026-41285",
    "source": "mitre",
    "references": "https://www.rfc-editor.org/rfc/rfc4861#section-4.6\nhttps://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f\nhttps://www.openbsd.org/errata78.html",
    "id": "CVE-2026-41285",
    "bulletinFamily": "",
    "cwe": [
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    "sourceData": "OpenBSD OpenBSD 0",
    "sourceHref": "",
    "cvss": {
        "score": 4.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
        "version": "3.1"
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        "availabilityImpact": "",
        "cvssV3": {
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    "product": "OpenBSD",
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