CVE-2026-73064
published 2026-09-24CVE-2026-73064: 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…
PriorityP410low2.9CVSS 3.1
AVLACHPRNUINSUCNILAN
EPSS
0.10%
0.9th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| trustedfirmware | mbed_tls | >= 3.2.0 < 3.6.7 | 3.6.7 |
| trustedfirmware | mbed_tls | >= 4.0.0 < 4.1.1 | 4.1.1 |
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Bugzilla
CVE-2026-73064 mbedtls: Mbed TLS: TLS stream integrity compromise via entropy source failure
bugzilla·2026-09-24·CVSS 2.9
CVE-2026-73064 [LOW] CVE-2026-73064 mbedtls: Mbed TLS: TLS stream integrity compromise via entropy source failure
CVE-2026-73064 mbedtls: Mbed TLS: TLS stream integrity compromise via entropy source failure
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.
Bugzilla
CVE-2026-73064 micropython: Mbed TLS: TLS stream integrity compromise via entropy source failure [fedora-all]
bugzilla·2026-09-24·CVSS 2.9
CVE-2026-73064 [LOW] CVE-2026-73064 micropython: Mbed TLS: TLS stream integrity compromise via entropy source failure [fedora-all]
CVE-2026-73064 micropython: Mbed TLS: TLS stream integrity compromise via entropy source failure [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
2026-09-24
Published