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CVE-2026-73064

Type: advisorySource: Official CVE List1 source record

In Mbed TLS 3.2.0 though 3.6.6 and 4.0.0 through 4.1.0, an attacker who can cause an entropy source to fail can remove or inject bytes into the start of the TLS stream. This only affects TLS 1.3 servers.

Announced Source revision 1
Original source ↗

CVE-2026-73064

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-73064

Mbed TLS

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/Mbed-TLS/mbedtls",
    "vendor": "trustedfirmware",
    "product": "Mbed TLS",
    "versions": [
      {
        "status": "affected",
        "version": "3.2.0",
        "lessThan": "3.6.7",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.0",
        "lessThan": "4.1.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-73064

Source reference: /cveMetadata/cveId

Publisher severity

low

Source reference: /containers/cna/metrics

Event
#1832 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement