MediaTek MT2737/MT6813/MT6980D/MT6982/MT6986/MT6988/MT6990 gnss out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k2.44-

Summaryinfo

A vulnerability was found in MediaTek MT2737, MT6813, MT6980D, MT6982, MT6986, MT6988 and MT6990. It has been declared as problematic. This affects an unknown part of the component gnss. The manipulation results in out-of-bounds write. This vulnerability is known as CVE-2026-20551. Attacking locally is a requirement. No exploit is available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability classified as problematic has been found in MediaTek MT2737, MT6813, MT6980D, MT6982, MT6986, MT6988 and MT6990. Affected is some unknown processing of the component gnss. 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 integrity, and availability. CVE summarizes:

In gnss, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11309305; Issue ID: MSV-10730.

The advisory is available at mediatek.com. This vulnerability is traded as CVE-2026-20551 since 11/03/2025. The exploitability is told to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Applying the patch ALPS11309305 is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.8

VulDB Base Score: 3.9
VulDB Temp Score: 3.8
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: Partially

Availability: 🔒
Status: Not defined
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: ALPS11309305

Timelineinfo

11/03/2025 CVE reserved
11/02/2026 +364 days Advisory disclosed
11/02/2026 +0 days VulDB entry created
11/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: mediatek.com
Status: Confirmed

CNA: MediaTek
CVE: CVE-2026-20551 (🔒)

GCVE (CVE): GCVE-0-2026-20551
GCVE (VulDB): GCVE-100-429750

Entryinfo

Created: 11/02/2026 04:09
Changes: 11/02/2026 04:09 (54)
Complete: 🔍
Cache ID: 216::103

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