OnePlus OxygenOS up to 15.0.0.1999/16.0.5.1199/16.1.10.499 olc2 logging HAL getCallingUid cmd improper authorization

Summaryinfo

A vulnerability was found in OnePlus OxygenOS up to 15.0.0.1999/16.0.5.1199/16.1.10.499. It has been declared as very critical. This vulnerability affects the function getCallingUid of the component olc2 logging HAL. Such manipulation of the argument cmd leads to improper authorization. This vulnerability is traded as CVE-2026-70387. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OnePlus OxygenOS up to 15.0.0.1999/16.0.5.1199/16.1.10.499 and classified as very critical. Affected by this issue is the function getCallingUid of the component olc2 logging HAL. The manipulation of the argument cmd with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Exposed dangerous method or function and Incorrect Authorization vulnerability in OnePlus OxygenOS on Android. The olc2 logging HAL exposes a binder method that fork()'s and calls execl("/vendor/bin/sh", "sh", "-c", cmd, NULL) with a caller-supplied command string. The only authorization check is getCallingUid() == 0. Because SELinux policy grants binder access to this HAL to a wide client attribute, any uid-0 process in any of those domains (including dumpstate, which is reachable from an unprivileged app via Vulnerability 1) obtains arbitrary command execution. The spawned shell lands in u:r:vendor_qti_init_shell:s0 SELinux context via a policy type_transition, a domain holding all Linux capabilities. This issue affects OxygenOS: from 16.1.0 before 16.1.10.500, from 16.0.0 before 16.0.5.1200, and from 15.0.0 before 15.0.0.2000.

The advisory is shared for download at blog.nns.ee. This vulnerability is handled as CVE-2026-70387 since 08/04/2026. The exploitation is known to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/21/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 15.0.0.2000, 16.0.5.1200 or 16.1.10.500 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-107155). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• OnePlus

Name

• OxygenOS

Version

• 15.0.0.1999
• 16.0.5.1199
• 16.1.10.499

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Once again VulDB remains the best source for vulnerability data.

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