Samsung Devices up to SMR Jul-2024 Release 1 IAFDService access control

Summaryinfo

A vulnerability identified as very critical has been detected in Samsung Devices. This affects an unknown function of the component IAFDService. This manipulation causes access control. This vulnerability is tracked as CVE-2026-21040. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability classified as very critical was found in Samsung Devices. Affected by this vulnerability is some unknown functionality of the component IAFDService. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Improper access control in IAFDService prior to SMR Jul-2026 Release 1 allows local privileged attackers to use the privileged APIs.

It is possible to read the advisory at security.samsungmobile.com. This vulnerability is known as CVE-2026-21040 since 12/11/2025. The exploitation appears to be easy. Attacking locally is a requirement. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version SMR Jul-2026 Release eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2275). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Samsung Android

Productinfo

Vendor

• Samsung

Name

• Devices

Version

• 4.1.01.0
• 7
• 8
• 9.0
• 10.0
• 11.0
• <=2017-11-03
• <=2020-04-02
• Go(8.1)
• Go(9.0)
• L
• L(5.1)
• L(5.x)
• M
• M(6.0)
• M(6.x)
• N
• N(7.0)
• N(7.1)
• N(7.x)
• O(8.0)
• O(8.1)
• O(8.X)
• O(8.x)
• P(9.0)
• P(9.x)
• Q(10.0)
• Q(10.x)
• R(11.0)
• SMR Feb-2021 Release 1
• SMR Jul-2024 Release
• SMR Jul-2024 Release 1

License

• commercial

Website

• Vendor: https://www.samsung.com/

CPE 2.3info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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