FKIE_CVE-2026-49425

Vulnerability from fkie_nvd - Published: 2026-08-19 08:17 - Updated: 2026-08-26 16:54
Severity
Summary
The compat32 kevent() handler translates a 64-bit kevent struct into a stack- declared 32-bit struct. It did not first zero the stack struct. An unprivileged user may observe a small amount of uninitialized kernel stack data, which may contain sensitive information.
References
secteam@freebsd.orghttps://security.freebsd.org/advisories/FreeBSD-SA-26:48.compat32.asc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "compat32"
          ],
          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "lessThan": "p11",
              "status": "affected",
              "version": "15.0-RELEASE",
              "versionType": "release"
            },
            {
              "lessThan": "p7",
              "status": "affected",
              "version": "14.4-RELEASE",
              "versionType": "release"
            },
            {
              "lessThan": "p16",
              "status": "affected",
              "version": "14.3-RELEASE",
              "versionType": "release"
            }
          ]
        }
      ],
      "source": "secteam@freebsd.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The compat32 kevent() handler translates a 64-bit kevent struct into a stack- declared 32-bit struct.  It did not first zero the stack struct.\n\nAn unprivileged user may observe a small amount of uninitialized kernel stack data, which may contain sensitive information."
    }
  ],
  "id": "CVE-2026-49425",
  "lastModified": "2026-08-26T16:54:50.030",
  "metrics": {},
  "published": "2026-08-19T08:17:12.160",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:48.compat32.asc"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "secteam@freebsd.org",
      "type": "Secondary"
    }
  ]
}



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