How severe is CVE-2022-40758?

CVE-2022-40758 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-2022-40758 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40758?

CVE-2022-40758 affects Samsung Mtower. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40758?

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-2022-40758 published?

CVE-2022-40758 was published on 2022-09-16 and last updated on 2026-06-17.

CVE-2022-40758

CVE-2022-40758 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% (54th 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_CipherUpdate function in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_CipherUpdate with an excessive size value of srcLen.

Frequently asked questions

What is CVE-2022-40758?: A Buffer Access with Incorrect Length Value vulnerablity in the TEE_CipherUpdate function in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_CipherUpdate with an excessive size value of srcLen.
How severe is CVE-2022-40758?: CVE-2022-40758 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-2022-40758 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40758?: CVE-2022-40758 affects Samsung Mtower. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40758?: 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-2022-40758 published?: CVE-2022-40758 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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CVE-2022-40757 — High (CVSS 7.5): A Buffer Access with Incorrect Length Value vulnerablity in the TEE_MACComputeFinal function in Samsung mTower through…

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