MediaTek MT8910 out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k1.24-

Summaryinfo

A vulnerability was found in MediaTek MT6739, MT6761, MT6765, MT6768, MT6769, MT6781, MT6789, MT6835, MT6853, MT6855, MT6858, MT6877, MT6878, MT6879, MT6881, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT6993, MT8126, MT8171, MT8188, MT8189, MT8195, MT8196, MT8367, MT8370, MT8390, MT8391, MT8668, MT8676, MT8678, MT8755, MT8766, MT8768, MT8775, MT8781, MT8786, MT8788, MT8791, MT8792, MT8793, MT8798, MT8799, MT8863, MT8873, MT8875, MT8883, MT8893 and MT8910. It has been rated as very critical. Affected is an unknown function. Performing a manipulation results in out-of-bounds write. This vulnerability is identified as CVE-2026-20544. The attack is only possible with local access. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6739, MT6761, MT6765, MT6768, MT6769, MT6781, MT6789, MT6835, MT6853, MT6855, MT6858, MT6877, MT6878, MT6879, MT6881, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT6993, MT8126, MT8171, MT8188, MT8189, MT8195, MT8196, MT8367, MT8370, MT8390, MT8391, MT8668, MT8676, MT8678, MT8755, MT8766, MT8768, MT8775, MT8781, MT8786, MT8788, MT8791, MT8792, MT8793, MT8798, MT8799, MT8863, MT8873, MT8875, MT8883, MT8893 and MT8910. It has been classified as very critical. This affects an unknown function. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In meta, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11049530 / ALPS11480843; Issue ID: MSV-7935.

It is possible to read the advisory at mediatek.com. This vulnerability is uniquely identified as CVE-2026-20544 since 11/03/2025. The exploitability is told to be easy. Attacking locally is a requirement. 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 10/05/2026).

Applying the patch ALPS11049530/ALPS11480843 is able to eliminate this problem.

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

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: ALPS11049530/ALPS11480843

Timelineinfo

11/03/2025 CVE reserved
10/05/2026 +335 days Advisory disclosed
10/05/2026 +0 days VulDB entry created
10/05/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: mediatek.com
Status: Confirmed

CVE: CVE-2026-20544 (🔒)
GCVE (CVE): GCVE-0-2026-20544
GCVE (VulDB): GCVE-100-413511

Entryinfo

Created: 10/05/2026 04:40
Changes: 10/05/2026 04:40 (53)
Complete: 🔍
Cache ID: 216::103

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

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