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CVE-2024-30166

Trustedfirmware Mbed Tls buffer overflow

9.1 CRITICALEPSS 0.74%
  1. Published3 Apr 2024

Description

In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

Trustedfirmware Mbed Tls≥ 3.3.0 < 3.6.0

Remediation

Fixed in
Trustedfirmware Mbed Tls≥ 3.6.0

References

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Frequently asked

Is CVE-2024-30166 being actively exploited?

CVE-2024-30166 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.74%.

How severe is CVE-2024-30166?

CVE-2024-30166 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.74% probability of exploitation.

Which products are affected by CVE-2024-30166?

Affected products include Trustedfirmware Mbed Tls.

How do I fix CVE-2024-30166?

Upgrade affected software to a fixed version, for example Trustedfirmware Mbed Tls 3.6.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-30166 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.