CVE-2026-102485

Full vulnerability record from the local CVENow database.

Description

Out-of-bounds read in the Motorola Oncore refclock driver in NTPsec ntpd before 1.2.6 allows an attacker who controls the GPS receiver's serial data to crash ntpd or disclose memory via a PPS Control (@@Gc) reply with an out-of-range mode byte.

Severity

MEDIUM

CVSS score

5.2 (v3.1)

Vulnerability status

Awaiting Analysis

Source identifier

[email protected]

Published

2026-10-21 16:17:14.187000

Last modified

2026-10-29 21:17:08.090000

View original CVE JSON

{
  "id": "CVE-2026-102485",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-21T16:17:14.187",
  "lastModified": "2026-10-29T21:17:08.090",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Out-of-bounds read in the Motorola Oncore refclock driver in NTPsec ntpd before 1.2.6 allows an attacker who controls the GPS receiver's serial data to crash ntpd or disclose memory via a PPS Control (@@Gc) reply with an out-of-range mode byte."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "NTPsec",
          "product": "ntpsec",
          "defaultStatus": "unknown",
          "repo": "https://gitlab.com/NTPsec/ntpsec",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.2.6",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "baseScore": 5.2,
          "baseSeverity": "MEDIUM",
          "attackVector": "PHYSICAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 0.9,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-29T17:32:39.710814Z",
          "id": "CVE-2026-102485",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gitlab.com/NTPsec/ntpsec/-/commit/22a09b3aec58831a9e4a008f3f22caa155f969c2",
      "source": "[email protected]"
    },
    {
      "url": "https://gitlab.com/NTPsec/ntpsec/-/work_items/895",
      "source": "[email protected]"
    }
  ]
}