How severe is CVE-2022-40757?

CVE-2022-40757 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-40757 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40757?

CVE-2022-40757 affects Samsung Mtower. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40757?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-40757 published?

CVE-2022-40757 was published on 2022-09-16 and last updated on 2026-06-17.

CVE-2022-40757

CVE-2022-40757 is a high-severity vulnerability in Samsung Mtower with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Samsung Mtower
Published: 2022-09-16
Last modified: 2026-06-17

Description

A Buffer Access with Incorrect Length Value vulnerablity in the TEE_MACComputeFinal function in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_MACComputeFinal with an excessive size value of messageLen.

Frequently asked questions

What is CVE-2022-40757?: A Buffer Access with Incorrect Length Value vulnerablity in the TEE_MACComputeFinal function in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_MACComputeFinal with an excessive size value of messageLen.
How severe is CVE-2022-40757?: CVE-2022-40757 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-40757 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40757?: CVE-2022-40757 affects Samsung Mtower. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40757?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-40757 published?: CVE-2022-40757 was published on 2022-09-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:samsung:mtower:*:*:*:*:*:*:*:*

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