CVE-2022-40761
CVE-2022-40761 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-1284.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-1284
- Affected product: Samsung Mtower
- Published:
- Last modified:
Description
The function tee_obj_free in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_AllocateOperation with a disturbed heap layout, related to utee_cryp_obj_alloc.
Frequently asked questions
- What is CVE-2022-40761?
- The function tee_obj_free in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_AllocateOperation with a disturbed heap layout, related to utee_cryp_obj_alloc.
- How severe is CVE-2022-40761?
- CVE-2022-40761 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-2022-40761 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-40761?
- CVE-2022-40761 affects Samsung Mtower. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-40761?
- 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-2022-40761 published?
- CVE-2022-40761 was published on 2022-09-16 and last updated on 2026-06-17.
References
- https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/tee/tee_obj.c#L109
- https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/tee/tee_svc_cryp.c#L1248
- https://github.com/Samsung/mTower/issues/83
Affected products (1)
- cpe:2.3:a:samsung:mtower:*:*:*:*:*:*:*:*
More vulnerabilities in Samsung Mtower
- CVE-2022-35858 — High (CVSS 7.8): The TEE_PopulateTransientObject and __utee_from_attr functions in Samsung mTower 0.3.0 allow a trusted application to…
- CVE-2022-40762 — High (CVSS 7.5): A Memory Allocation with Excessive Size Value vulnerablity in the TEE_Realloc function in Samsung mTower through 0.3.0…
- CVE-2022-40760 — High (CVSS 7.5): A Buffer Access with Incorrect Length Value vulnerablity in the TEE_MACUpdate function in Samsung mTower through 0.3.0…
- CVE-2022-40759 — High (CVSS 7.5): A NULL pointer dereference issue in the TEE_MACCompareFinal function in Samsung mTower through 0.3.0 allows a trusted…
- CVE-2022-40758 — High (CVSS 7.5): A Buffer Access with Incorrect Length Value vulnerablity in the TEE_CipherUpdate function in Samsung mTower through…
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