{
  "fix": "DEBIAN-CVE-2026-3904",
  "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-3904",
  "summary": "DEBIAN-CVE-2026-3904, released March 11, 2026, fixes 1 CVE in glibc (version 2.36-9). None of them is reported as exploited. Patch Radar priority: Routine.",
  "platform": "linux",
  "type": "advisory",
  "title": "glibc security update",
  "released": "2026-03-11T14:16:30Z",
  "priority": "Routine",
  "priorityTier": 4,
  "priorityReason": "Closes CVE-2026-3904",
  "supported": true,
  "cveCount": 1,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00164,
  "maxCvss": 6.2,
  "vendorAdvisory": "https://security-tracker.debian.org/tracker/CVE-2026-3904",
  "appliesTo": [
    {
      "product": "glibc",
      "productUrl": "https://patchblox.com/security/product/linux/glibc",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.36-9",
      "supported": true
    },
    {
      "product": "glibc",
      "productUrl": "https://patchblox.com/security/product/linux/glibc",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.36-9",
      "supported": true
    },
    {
      "product": "glibc",
      "productUrl": "https://patchblox.com/security/product/linux/glibc",
      "release": "Debian 14",
      "fixedVersion": "2.36-9",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-3904",
      "url": "https://patchblox.com/security/cve/CVE-2026-3904",
      "title": "Calling NSS-backed functions that support caching via nscd may call the \nnscd client side code and in the GNU C Library version 2.36 under high \nload on x86_64 systems, the client may call memcmp on inputs that are \nconcurrently modified by other processes or threads and crash.\n\n\n\n\nThe nscd client in the GNU C Library uses the memcmp function with \ninputs that may be concurrently modified by another thread, potentially \nresulting in spurious cache misses, which in itself is not a security \nissue.\u00A0 However in the GNU C Library version 2.36 an optimized \nimplementation of memcmp was introduced for x86_64 which could crash \nwhen invoked with such undefined behaviour, turning this into a \npotential crash of the nscd client and the application that uses it. \nThis implementation was backported to the 2.35 branch, making the nscd \nclient in that branch vulnerable as well.\u00A0 Subsequently, the fix for \nthis issue was backported to all vulnerable branches in the GNU C \nLibrary repository.\n\n\nIt is",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.2,
      "epss": 0.00164,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}