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CVE-2022-40759

24
FAUCET Score

CVE-2022-40759 is a NULL pointer dereference vulnerability in the TEE_MACCompareFinal function of Samsung mTower through version 0.3.0. This flaw allows a trusted application to trigger a Denial of Service (DoS) by providing a NULL pointer for the 'operation' parameter. Rated 7.5 HIGH on CVSS, it is a network-exploitable vulnerability with low attack complexity, requiring no privileges or user interaction, and impacting availability. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), it is not listed in CISA's KEV catalog, and has received no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.3.0CPE matchmatch criteria
cpe:2.3:a:samsung:mtower:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 30th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/lib/libutee/tee_api_operations.c
PatchThird Party Advisory
github.com / Samsung/mTower/issues/80
Third Party Advisory