CVE-2026-20485: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
CVE-2026-20485 is an out-of-bounds write vulnerability in MediaTek chipsets, specifically in the MT6993 model. The flaw arises from a missing bounds check in the HFRP component. Exploitation does not require user interaction but does require the attacker to already have System privileges, potentially allowing local privilege escalation.
AI Analysis
Technical Summary
This vulnerability (CWE-787) in MediaTek's MT6993 chipset involves an out-of-bounds write due to a missing bounds check in the HFRP module. An attacker with existing System privileges could exploit this flaw to escalate privileges locally. There is no indication of remote exploitation or user interaction needed. The vulnerability was published with no CVSS score and no official remediation level or patch information provided. The patch ID referenced is ALPS11049569, but no patch link or vendor advisory details are available.
Potential Impact
If exploited, this vulnerability could allow a local attacker who already has System privileges to escalate their privileges further, potentially gaining higher-level control over the affected device. The lack of user interaction requirement increases the risk in environments where System privileges are already compromised. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or remediation level is provided, users should monitor MediaTek advisories for updates related to patch ID ALPS11049569. Until a patch is available, limit local access to trusted users and maintain strict control over accounts with System privileges.
CVE-2026-20485: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20485 is an out-of-bounds write vulnerability in MediaTek chipsets, specifically in the MT6993 model. The flaw arises from a missing bounds check in the HFRP component. Exploitation does not require user interaction but does require the attacker to already have System privileges, potentially allowing local privilege escalation.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-787) in MediaTek's MT6993 chipset involves an out-of-bounds write due to a missing bounds check in the HFRP module. An attacker with existing System privileges could exploit this flaw to escalate privileges locally. There is no indication of remote exploitation or user interaction needed. The vulnerability was published with no CVSS score and no official remediation level or patch information provided. The patch ID referenced is ALPS11049569, but no patch link or vendor advisory details are available.
Potential Impact
If exploited, this vulnerability could allow a local attacker who already has System privileges to escalate their privileges further, potentially gaining higher-level control over the affected device. The lack of user interaction requirement increases the risk in environments where System privileges are already compromised. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or remediation level is provided, users should monitor MediaTek advisories for updates related to patch ID ALPS11049569. Until a patch is available, limit local access to trusted users and maintain strict control over accounts with System privileges.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.022Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700184bf32cb7a34d5cabf
Added to database: 08/03/2026, 02:48:36 UTC
Last enriched: 08/03/2026, 03:08:18 UTC
Last updated: 08/03/2026, 03:08:18 UTC
Views: 2
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