| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.8 | $0-$5k | 4.45- |
Summary
A vulnerability was found in MediaTek MT6991, MT8768, MT8791T, MT8792, MT8796, MT8799, MT8873, MT8883, MT8893 and MT8910. It has been classified as very critical. This affects an unknown function. The manipulation leads to permission. This vulnerability is documented as CVE-2026-20498. The attack needs to be performed locally. There is not any exploit available.
Details
A vulnerability, which was classified as very critical, has been found in MediaTek MT6991, MT8768, MT8791T, MT8792, MT8796, MT8799, MT8873, MT8883, MT8893 and MT8910. This issue affects an unknown code block. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
In geniezone, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10900493; Issue ID: MSV-6765.
The advisory is shared at mediatek.com. The identification of this vulnerability is CVE-2026-20498 since 11/03/2025. The exploitation is known to be easy. An attack has to be approached locally. The exploitation needs additional levels of successful authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/03/2026). MITRE ATT&CK project uses the attack technique T1222 for this issue.
Applying the patch ALPS10900493 is able to eliminate this problem.
The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-2026-86338208). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.2VulDB Meta Temp Score: 7.8
VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: PermissionCWE: CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Patch: ALPS10900493
Timeline
11/03/2025 CVE reserved08/03/2026 Advisory disclosed
08/03/2026 VulDB entry created
08/03/2026 VulDB entry last update
Sources
Advisory: mediatek.comStatus: Confirmed
CVE: CVE-2026-20498 (🔒)
GCVE (CVE): GCVE-0-2026-20498
GCVE (VulDB): GCVE-100-385481
CNNVD: CNNVD-2026-86338208 - MediaTek Chipsets 软件供应链问题漏洞
Entry
Created: 08/03/2026 05:30Updated: 08/03/2026 16:39
Changes: 08/03/2026 05:30 (53), 08/03/2026 16:39 (6)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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