CVE-2026-41285

Source
https://cve.org/CVERecord?id=CVE-2026-41285
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41285.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-41285
Published
2026-04-20T00:00:00Z
Modified
2026-10-21T09:59:56Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

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.

Database specific
{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-1284"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41285.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "last_affected":  "7.8"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "last_affected":  "7.8"
                        }
                    ],
                    "source":  "CPE_FIELD",
                    "strategy":  "CPEApplicability"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "last_affected":  "7.8"
                        }
                    ],
                    "source":  "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/openbsd/src

Affected ranges

Type
GIT
Repo
https://github.com/openbsd/src
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
Show details
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "086c5738bcd3c203bcc08d024fcf983cb409115f"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41285.json"
vanir_signatures
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        "deprecated":  false,
        "digest":  {
            "function_hash":  "55084904214179239878277329076062198518",
            "length":  4775
        },
        "id":  "CVE-2026-41285-0449ba25",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f",
        "target":  {
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            "function":  "debug_log_ra"
        }
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        "signature_version":  "v1",
        "source":  "https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f",
        "target":  {
            "file":  "usr.sbin/rad/engine.c"
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        "deprecated":  false,
        "digest":  {
            "function_hash":  "103454554488181703750540438355197157328",
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        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f",
        "target":  {
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        "signature_type":  "Line",
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        "source":  "https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f",
        "target":  {
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        "digest":  {
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        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f",
        "target":  {
            "file":  "usr.sbin/rad/engine.c",
            "function":  "parse_rs"
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]
vanir_signatures_modified
"2026-10-21T09:59:56Z"