{
  "cveId": "CVE-2026-28525",
  "url": "https://patchblox.com/security/cve/CVE-2026-28525",
  "summary": "CVE-2026-28525 is fixed in swupdate on 1 platform, first by DEBIAN-CVE-2026-28525, released April 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "swupdate: SWUpdate contains an integer underflow vulnerability in the multipart upload parser in mongoose_multipart.c that allo...",
  "description": "SWUpdate contains an integer underflow vulnerability in the multipart upload parser in mongoose_multipart.c that allows unauthenticated attackers to cause a denial of service by sending a crafted HTTP POST request to /upload with a malformed multipart boundary and controlled TCP stream timing. Attackers can trigger an integer underflow in the mg_http_multipart_continue_wait_for_chunk() function when the buffer length falls within a specific range, causing an out-of-bounds heap read past the allocated receive buffer to a local IPC socket.",
  "published": "2026-04-23T21:16:05Z",
  "severity": "",
  "epss": 0.00316,
  "epssPercentile": 0.24704,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "swupdate",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2022.12\u002Bdfsg-4\u002Bdeb12u2",
      "fix": "DEBIAN-CVE-2026-28525",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-28525",
      "released": "2026-04-23T21:16:05Z"
    },
    {
      "platform": "linux",
      "product": "swupdate",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2024.12.1\u002Bdfsg-3\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-28525",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-28525",
      "released": "2026-04-23T21:16:05Z"
    },
    {
      "platform": "linux",
      "product": "swupdate",
      "release": "Debian 14",
      "fixedVersion": "2025.12\u002Bdfsg-9",
      "fix": "DEBIAN-CVE-2026-28525",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-28525",
      "released": "2026-04-23T21:16:05Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}