CVE-2023-20646
Description
In ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07628536; Issue ID: ALPS07628536.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
In ril, a missing bounds check leads to out-of-bounds read and local information disclosure with System privileges.
Vulnerability
The vulnerability exists in the ril component of MediaTek chipsets. A missing bounds check leads to an out-of-bounds read. Affected versions include chipsets such as MT6879, MT6895, MT6983 and others listed in the bulletin [1]. System execution privileges are required to trigger the vulnerable code path.
Exploitation
An attacker with System execution privileges can exploit this vulnerability without user interaction. The attacker needs to trigger the out-of-bounds read, likely by providing crafted input to the ril component.
Impact
Successful exploitation leads to local information disclosure, potentially exposing sensitive data. The attacker gains information disclosure at the System privilege level.
Mitigation
MediaTek has released a patch (ALPS07628536) as part of the March 2023 security bulletin [1]. Device OEMs are notified and updates should be applied. No workarounds are mentioned.
AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- MediaTek, Inc./MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8321, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797v5Range: Android 12.0, 13.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
0No linked articles in our index yet.